Patent US2728475A successfully refreshed from Google Patents.
Patent US3113715A successfully refreshed from Google Patents.
US3113715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-block edge for plastic bags and the like
Assignee: Dow Chemical Co
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Filing: 1961-02-03
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Granted: 1963-12-10
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Expires: 1981-02-03
Abstract
No abstract record available.
Inventors
- 👤 George D Pangrac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PLASTIC FILM BAG HAVING ONE SHEET PORTIN OVERLYING ANOTHER SHEET PORTION, SAID ONE SHEET PORTION BEING GENERALLY COEXTENSIVE WITH AND JOINED ALONG ITS EXTREMITIES WITH SAID OTHER SHEET PORTION EXCEPT ALONG ONE EDGE THEREOF, THE EXTREMITY OF SAID ONE EDGE OF SAID OTHER SHEET PORTION EXTENDING BEYOND THE CORRESPONDING EDGE OF SAID ONE SHEET PORTION TO FORM A FLAP, SAID EDGE OF SAID ONE SHEET PORTION BEING ADAPTED TO LIE FLATLY UPON AND AGAINST SAID FLAP BUT BEING SEPARABLE THEREFROM TO PROVIDE AN OPENING FOR SAID BAG, AND A LINEARLY EXTENDING PROTUBERANT PHYSICAL DEFORMATION FORMED ALONG SAID EDGE
Claim 2
Dependent Claim
99 words
A PLASTIC FILM BAG HAVING ONE SHEET PORTIN OVERLYING ANOTHER SHEET PORTION, SAID ONE SHEET PORTION BEING GENERALLY COEXTENSIVE WITH AND JOINED ALONG ITS EXTREMITIES WITH SAID OTHER SHEET PORTION EXCEPT ALONG ONE EDGE THEREOF, THE EXTREMITY OF SAID ONE EDGE OF SAID OTHER SHEET PORTION EXTENDING BEYOND THE CORRESPONDING EDGE OF SAID ONE SHEET PORTION TO FORM A FLAP, SAID EDGE OF SAID ONE SHEET PORTION BEING ADAPTED TO LIE FLATLY UPON AND AGAINST SAID FLAP BUT BEING SEPARABLE THEREFROM TO PROVIDE AN OPENING FOR SAID BAG, AND A LINEARLY EXTENDING PROTUBERANT PHYSICAL DEFORMATION FORMED ALONG SAID EDGE
References Cited (Backward Citations)
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Cited
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Cited
US2488212A
Cited
US2778173A
Cited
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Cited
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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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |