Patent US3269643A successfully refreshed from Google Patents.
US3269643A
Expired / Lapsed
US
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Multi-wall bag
Assignee: Graphic Packaging International LLC
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Filing: 1964-03-04
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Granted: 1966-08-30
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Expires: 1984-03-04
Abstract
No abstract record available.
Inventors
- 👤 Mcdowell Robert Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:49
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/10; B32B1/00; B32B1/08; B32B27/32; B32B29/00; B32B29/002; B32B29/005; B32B7/00; B32B7/04; B32B7/12; B32B7/14; B65; B65D; B65D31/00; B65D31/04; D; D21; D21H; D21H19/00; D21H19/80; D21H19/84; D21J; D21J1/00; B31; B31B; B31B2155/00; B31B2170/00; B31B2170/20; B31B70/00; B31B70/74; B31B70/81; B32B2317/00; B32B2317/12; B32B2317/122; B32B2439/00; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1724
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
IN A MULTI-WALL BAG OF THE TYPE HAVING A PLURALITY OF LAYERS OF KRAFT PAPER AND AT LEAST ONE DISCRETE LAYER OF PLASTIC FILM, THE IMPROVEMENT COMPRISING ADHESIVE MEANS FOR RELEASABLY ADHERING THE PLASTIC LAYER TO ONE OF SAID KRAFT LAYERS IN ACCORDANCE WIHT A UNIFORM, CLEARLY DISCERNIBLE PATTERN OR NETWORK, SAID NETWORK EXTENDING THROUGHOUT THE INNER FACE BETWEEN THE PLASTIC LAYER AND THE KRAFT LAYER, SAID ADHESIVE PATTERN DEFINING A RELATIVELY LARGE TOTAL AREA WHICH IS FREE OF ADHESIVE MEANS AND A RELATIVELY SMALL TOTAL AREA WHICH IS COATED WITH ADHESIVE MEANS, SAID ADHESIVE PATTERN FURTHER DEFINING SPACED, SUBSTANTIALLY CONTINUOUS LINES OF ADHESIVE MEANS SANDWICHED BETWEEN SAID ONE KRAFT LAYER AND THE PLASTIC LAYER, THE WIDTH OF THE LINES OF ADHESIVE MEANS AND THE SPACING THEREOF RELATIVE TO ONE ANOTHER BEING SO SELECTED AND ARRANGED THAT THE LINES OF ADHESIVE MEANS COVER NO MORE THAN ABOUT FIVE PERCENT OF EACH UNIT AREA OF KRAFT PAPER AND PLASTIC FILM BETWEEN WHICH THE LINES OF ADHESIVE MEANS ARE SANDWICHED.
Claim 2
Dependent Claim
168 words
IN A MULTI-WALL BAG OF THE TYPE HAVING A PLURALITY OF LAYERS OF KRAFT PAPER AND AT LEAST ONE DISCRETE LAYER OF PLASTIC FILM, THE IMPROVEMENT COMPRISING ADHESIVE MEANS FOR RELEASABLY ADHERING THE PLASTIC LAYER TO ONE OF SAID KRAFT LAYERS IN ACCORDANCE WIHT A UNIFORM, CLEARLY DISCERNIBLE PATTERN OR NETWORK, SAID NETWORK EXTENDING THROUGHOUT THE INNER FACE BETWEEN THE PLASTIC LAYER AND THE KRAFT LAYER, SAID ADHESIVE PATTERN DEFINING A RELATIVELY LARGE TOTAL AREA WHICH IS FREE OF ADHESIVE MEANS AND A RELATIVELY SMALL TOTAL AREA WHICH IS COATED WITH ADHESIVE MEANS, SAID ADHESIVE PATTERN FURTHER DEFINING SPACED, SUBSTANTIALLY CONTINUOUS LINES OF ADHESIVE MEANS SANDWICHED BETWEEN SAID ONE KRAFT LAYER AND THE PLASTIC LAYER, THE WIDTH OF THE LINES OF ADHESIVE MEANS AND THE SPACING THEREOF RELATIVE TO ONE ANOTHER BEING SO SELECTED AND ARRANGED THAT THE LINES OF ADHESIVE MEANS COVER NO MORE THAN ABOUT FIVE PERCENT OF EACH UNIT AREA OF KRAFT PAPER AND PLASTIC FILM BETWEEN WHICH THE LINES OF ADHESIVE MEANS ARE SANDWICHED.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |