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Browse by Category: Main > Packaging & Containers
Class Information
Number: 383/121
Name: Flexible bags > End structure (e.g. bottom)
Description: Subject matter wherein the bag includes a specified feature of the closed end.










Sub-classes under this class:

Class Number Class Name Patents
383/123 Formed by folding bag walls on common fold line and joining together 28
383/125 Overlapping extensions of opposed walls 29
383/121.1 Rigid bottom 56
383/122 Seamless 75


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
4759642 Reclosable bag especially suitable for cereal packaging, and method Jul. 26, 1988
4730942 Flexible bulk containers Mar. 15, 1988
4720872 Thermoplastic bag and method of forming the same Jan. 19, 1988
4718738 Flexible bank for coins Jan. 12, 1988
4717262 Flat bottom plastic bag and method of making same Jan. 5, 1988
4715635 Flexible container for transporting and storing bulk goods Dec. 29, 1987
4713033 Line throw-bag Dec. 15, 1987
4708243 Portable bag storage assembly Nov. 24, 1987
4685276 Method for producing and filling bottom-fold bags and apparatus for execution of the method Aug. 11, 1987
4685148 Square ended valve bag Aug. 4, 1987
4676416 Walker and carrier therefor Jun. 30, 1987
4658432 Container for bulk material Apr. 14, 1987
4646357 Transport bag for particulate material Feb. 24, 1987
4644732 Easy opening, disposable condiment container Feb. 24, 1987
4638913 Multiply package having delaminating easy open seal Jan. 27, 1987
4628535 Large sack comprising a double-walled outer sack and an inserted inner sack Dec. 9, 1986
4607388 Flexible container for transporting and storing bulk goods Aug. 19, 1986
4595093 Package of compressed resilient articles and concomitant method of unpackaging Jun. 17, 1986
4584705 Flexible container Apr. 22, 1986
4576316 Dispensing bag Mar. 18, 1986
4571235 Methods for preparing flat-bottom thermoplastic sack and systems therefore Feb. 18, 1986
4553668 Packing articles, such as packages of rolls of paper Nov. 19, 1985
4554192 Thermoplastic bag and thermoplastic bag pack Nov. 19, 1985
4539236 Laminated multi-layered film enclosures Sep. 3, 1985
4482342 Blood processing system for cell washing Nov. 13, 1984
4479243 Collapsible receptacle with prefabricated lift loops and method of making Oct. 23, 1984
4450028 Method of making laminated multi-layered film enclosures May. 22, 1984
4450581 Convenience container with cornered bottom May. 22, 1984
4428484 Portable wine bottle carrier Jan. 31, 1984
4290525 Automatic count and identification carrier for refundable cans Sep. 22, 1981
4284229 Reclosable cross-bottom sack Aug. 18, 1981
4270677 Reclosable cross-bottom sack Jun. 2, 1981
4235366 Plastics sack with internal closure member, base cover sheet and emptying means Nov. 25, 1980
4195676 Wheeled briefcase Apr. 1, 1980
4191229 Flexible container for transportation and storage of bulk materials Mar. 4, 1980
4184627 Sack of plastics material with internal fastener and base covering sheet and method of making same Jan. 22, 1980
4175604 Tamper proof security mail and bank collection bag Nov. 27, 1979
4136723 Flexible container for transportation and storage of bulk material Jan. 30, 1979
4041851 Method for making plastic bags Aug. 16, 1977
3970241 Flat bottom bag Jul. 20, 1976

1 2 3










 
 
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