US3274869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of simultaneously punching a hole and piercing an edge portion in the lip of a plastic bag
Assignee: Continental Can Co Inc
•
Filing: 1964-04-16
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Granted: 1966-09-27
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Expires: 1984-04-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Piazze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:31
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/12; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0586; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/929; Y10T83/9411; Y10T83/9418; Y10T83/942
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
53 words
THE METHOD OF FORMING AN OPENING WITHIN THE LIP OF A PLASTIC BAG FORMED OF THIN GAUGE SHEET MATERIAL, WHICH OPENINGS IS SEPARATED FROM THE TRANSVERSE LIP DEFINING EDGE OF SAID BAG BY MATERIAL HAVING A PREDETERMINED LONGITUDINAL EXTENT, SAID METHOD COMPRISING SIMULTANEOUSLY REMOVING A PORTION OF SAID LIP TO DEFINE SAID OPEN-
References Cited (Backward Citations)
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US356734A
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US1089587A
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US1962968A
Cited
GB418607A
Cited
US2019749A
Cited
US2708968A
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |