| Patents for B65D 27 - Envelopes or like essentially-rectangular flexible containers for postal or other purposes having no structural provision for thickness of contents (3,640) |
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| 05/15/2001 | US6230964 Protruding case for mail |
| 05/10/2001 | US20010000892 Double sided sleeve with a single sheet non- woven material for holding compact discs |
| 05/08/2001 | US6227444 Expandable envelope construction |
| 05/08/2001 | US6227443 Envelope with a designated return envelope portion |
| 05/02/2001 | CN2428418Y Stamped envelope with adhesive |
| 05/01/2001 | US6223977 Easy open envelope |
| 04/26/2001 | WO2001028878A1 Envelope and foldable envelope sheet |
| 04/26/2001 | CA2351418A1 Envelope and blank folded to form the envelope |
| 04/25/2001 | CN2427455Y Simple environmental protection paper bag |
| 04/24/2001 | US6220505 Envelope having a removable panel |
| 04/24/2001 | US6220504 Envelope with a removable panel |
| 04/19/2001 | WO2001026826A2 Envelope structure |
| 04/18/2001 | EP1091882A2 Envelope or mailer having a coplanar window |
| 04/12/2001 | WO2001025100A1 Envelope |
| 04/11/2001 | EP1090848A1 Gusseted envelope |
| 04/05/2001 | WO2001024109A1 Low cost long distance rfid reading |
| 04/04/2001 | EP1088766A1 Envelope for photographic orders |
| 04/04/2001 | EP1088132A1 Cellulose substrates with transparentized area and method of making same |
| 03/29/2001 | CA2323130A1 Order envelope for the delivery of photographic work |
| 03/21/2001 | CN2424129Y Clamping-adhered secrete envelope |
| 03/14/2001 | CN2423221Y Envelope |
| 03/14/2001 | CN1063146C Commemorative envelope with more than one name and more addresses for continuous posting and its using mehtod |
| 03/06/2001 | US6196447 Envelope with outside coupon flap |
| 02/28/2001 | CN2421256Y Self-sticking type commercial letters |
| 02/28/2001 | CN2421255Y Universal envelope without sticking |
| 02/21/2001 | CN2420236Y Convenient sealing and opening envelope |
| 02/20/2001 | US6189774 Postcard for mailing and displaying a photograph |
| 02/20/2001 | US6189773 Envelope-type container, in particular for stockings and the like |
| 02/15/2001 | DE19937586A1 Mailer for CD's and floppy disks comprises cardboard blank in three sections, first two sections forming box and third section having transverse slits into which this disk is inserted, after which it is inserted into made-up mailer |
| 02/14/2001 | EP1075431A1 Transparent or translucent paper envelope |
| 02/13/2001 | US6186320 Double sided sleeve with a single sheet non-woven material for holding compact discs |
| 02/06/2001 | US6182886 Envelope construction |
| 02/01/2001 | WO2000058165A3 Envelope or mailer having a coplanar window |
| 01/31/2001 | CN2417132Y Inner folding line type envelope with closure |
| 01/11/2001 | WO2001003058A1 Methods of placing rfid transponders in densely spaced media |
| 01/10/2001 | CN2414015Y Easy opened envelope |
| 01/10/2001 | CN2414014Y Adhesive stick type envelope |
| 01/10/2001 | CN1279197A Postage paid envelope |
| 01/03/2001 | EP0809575B1 Secure mailer/receipt business form |
| 01/03/2001 | CN2412849Y Express documents pouch |
| 01/03/2001 | CN2412848Y Labelled envelope capable of automatic picking out |
| 12/28/2000 | WO2000079431A1 Certified mailer and method of using the same |
| 12/28/2000 | WO2000078624A1 Cushioned, stretchable packaging materials |
| 12/27/2000 | CN2411987Y Sealing belt with anti-sticking layer |
| 12/27/2000 | CN2411973Y Long term effective adhesive envelope |
| 12/20/2000 | CN1277135A Composite plastic film bag |
| 12/13/2000 | EP1058665A1 A pouch for a data carrier and method for manufacturing same |
| 12/12/2000 | US6158651 Business form or mailer with carbonless imaging |
| 12/05/2000 | US6155481 Returnable mailer |
| 11/29/2000 | CN1274667A Envelope utilizing standard post code |
| 11/28/2000 | US6152361 Z-fold business mailer |
| 11/22/2000 | CN2406935Y Envelope with letter paper |
| 11/22/2000 | CN2406934Y Easily sealing and opening envelope |
| 11/08/2000 | CN2404826Y Easy to be opened type envelope with holes |
| 11/07/2000 | US6143120 Applying a (meth)acrylate esters of hydroxy polyethers of ethylene or propylene oxide to cellulose substrate and curing with radiation; envelope windows; fast impregnation; good toner adhesion; solvent-free; continuous processing |
| 11/01/2000 | CN2403708Y Improved advertising stamped envelope |
| 11/01/2000 | CN2403707Y Envelope |
| 11/01/2000 | CN1271679A Environment protection type easily opened envelope or letter bag |
| 10/31/2000 | US6138900 Flip-up tab pouch |
| 10/18/2000 | CN2401477Y Self-adhesional easy opened large envelope |
| 10/18/2000 | CN2401229Y Universal chess board box |
| 10/10/2000 | US6129269 Easy-opening reusable envelopes |
| 10/10/2000 | US6129264 Multiple solicitation envelopes with matching indicia |
| 10/05/2000 | WO2000058165A2 Envelope or mailer having a coplanar window |
| 10/04/2000 | CN2399319Y Self-sticking notepaper type envelope having internally-folded follower |
| 10/04/2000 | CN2399318Y Single sealing advertisement envelope |
| 10/04/2000 | CN1268471A Propaganda envelope and its designing method |
| 09/27/2000 | EP1038787A1 Easy-to-open recyclable envelope |
| 09/27/2000 | CN2398210Y Envelope with adhesive on flap |
| 09/26/2000 | US6123256 Envelope construction |
| 09/26/2000 | US6123253 Business form or mailer with carbonless imaging |
| 09/20/2000 | CN2397051Y 信封 Envelope |
| 09/14/2000 | DE19908868A1 Cardboard mailing package has longitudinal scores on the inside which extend through part of its thickness |
| 09/06/2000 | EP1033316A2 Returnable mailer |
| 09/06/2000 | CN2394864Y Convenient health self adhesive envelope |
| 08/31/2000 | WO2000050310A1 Tamper evident seal for a bag |
| 08/29/2000 | US6109511 Transmittal envelope with miter joint corners |
| 08/16/2000 | EP1028065A1 Bag having a tamper-evident closure |
| 08/16/2000 | EP1027259A1 Security seal |
| 08/16/2000 | CN2391831Y Easy ope type envelopes |
| 08/16/2000 | CN2391830Y Adhesion type envelopes |
| 08/16/2000 | CN2391829Y Envelopes with propagation |
| 08/16/2000 | CN1263029A Pressure-sensitive sealing envelope |
| 08/15/2000 | US6103355 For use as a mailer or envelope and which has at least one transparentized portion |
| 08/10/2000 | WO2000009402A3 Device for opening envelopes and electronic stamp |
| 08/08/2000 | US6098872 Office envelope |
| 08/02/2000 | CN2389850Y Envelope having pressure-sensitive adhesive on its flap |
| 08/02/2000 | CN2389849Y Envelope specially adapted for legal document |
| 07/27/2000 | WO2000043280A1 Envelope with an adhesive closure and method and device for producing the same |
| 07/20/2000 | DE19901821A1 Envelope comprises a rear flap which is provided with a layer of adhesive agent and is pivotable into a closure position from its storage position on an envelope surface treated with a separation agent |
| 07/11/2000 | CA2271920A1 Multiple solicitation envelopes with matching indicia |
| 06/28/2000 | CN2384881Y Envelope opening by one hand |
| 06/22/2000 | WO2000035765A1 Compact disc container |
| 06/22/2000 | CA2360071A1 Compact disc container |
| 06/21/2000 | CN2383783Y Envelope with fold line in its open |
| 06/21/2000 | CN2383782Y Test paper sealing bag with convenient opening and sealing structure |
| 06/21/2000 | CN2383666Y Notepaper type envelope taping device |
| 06/14/2000 | CN2382669Y 信封 Envelope |
| 06/14/2000 | CN2382668Y Reuseable envelope |
| 06/07/2000 | CN2381588Y Convienent envelope |