US3664575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag closure
Assignee: Individual
•
Filing: 1970-11-20
•
Granted: 1972-05-23
•
Expires: 1990-11-20
Abstract
Abstract A CLOSURE DEVICE FOR A PLASTIC BAG IS FORMED OF THE PLASTIC MATERIAL OF THE BAG ITSELF DURING MANUFACTURE OF THE BAG AND IS MADE BY PERFORATION AND SEAL LINES THAT FORM A KEEPER REMOVABLE FROM THE BAG. THE KEEPER HAS A LOOP END AND A SEAL REGION SPACED FROM THE LOOP END TO CLOSE THE LOOP. THE TAIL END OF THE KEEPER OPPOSITE THE LOOP IS WRAPPED AROUND THE NECK OF THE CLOSED BAG AND PULLED THROUGH THE LOOP. THE KEEPER IS SUFFICIENTLY WIDE AND FLEXIBLE SO THAT IT IS DRAWN DOWN TO A SUBSTANTIALLY NARROWER WIDTH WHERE THE LOOP AND TAIL ENGAGE TO HOLD THE BAG TIGHTLY CLOSED.
Inventors
- 👤 Connie Lake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:21
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/1616; B65D33/165
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |