US3607521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic bag or the like with handle
Assignee: Individual
•
Filing: 1969-05-09
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Granted: 1971-09-21
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Expires: 1989-05-09
Abstract
Abstract A method of manufacture of plastic bags with handles formed from a tube of thin film plastic material and with the handles formed from the same material as the bag walls. Portions of the sidewalls of the tube of plastic material are cut away to form the handles, and in order to provide handles of sufficient strength to carry the load and to properly distribute the resulting stresses over the entire sidewalls of the bag, the tubular thin film of plastic is extruded so as to have portions thereof formed of a thicker material than the rest of the bag walls, and the handles are located so as to include portions of the thicker material.
Inventors
- 👤 Heikki S Suominen
- 👤 Viljo J Makinen
- 👤 Aarno S Lindstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:54
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/86; B31B70/874; B31B2160/00; B31B2160/10; B31B70/872; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/926; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |