US3219743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of casting end stops on zip fasteners
Assignee: Individual
•
Filing: 1962-04-03
•
Granted: 1965-11-23
•
Expires: 1982-04-03
Abstract
No abstract record available.
Inventors
- 👤 Berler Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:44
CPC Classifications
B; B29; B29D; B29D5/00; B29D5/10; B29C; B29C45/00; B29C45/14; B29C45/14336; Y; Y10; Y10S; Y10S190/00; Y10S190/903; Y10S425/00; Y10S425/814
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2335222A
Cited
US2500258A
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US2464050A
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US2415961A
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US2471258A
Cited
US2577584A
Cited
US2965932A
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US3087217A
Cited
US3086269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |