the edge of the preformed opening being provided with incisions or notches for facilitating removal

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Patents Grantslast 30 patents

Information Patent Grant
Self-opening can
- Patent number 6,427,862
- Issue date Aug 6, 2002
- Ming-Tang Hsu
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Easy-opening composite closure for hermetic sealing of a packaging...
- Patent number 5,353,943
- Issue date Oct 11, 1994
- Sonoco Products Company
- Donald W. Hayward
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Easy-opening composite closure for hermetic sealing of a packaging...
- Patent number 5,069,355
- Issue date Dec 3, 1991
- Sonoco Products Company
- John J. Matuszak
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Closure
- Patent number 3,964,670
- Issue date Jun 22, 1976
- The Procter & Gamble Company
- John Sigfrid Amneus
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Container with tear-weld opening means
- Patent number 3,946,896
- Issue date Mar 30, 1976
- Jerome H. Lemelson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
3802594
- Patent number 3,802,594
- Issue date Apr 9, 1974
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL