Patent US3471185A successfully refreshed from Google Patents.
US3471185A
Expired / Lapsed
US
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Helical ratchet clasp
Assignee: Individual
•
Filing: 1967-12-29
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Granted: 1969-10-07
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Expires: 1987-12-29
Abstract
No abstract record available.
Inventors
- 👤 Edward L Parr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:50
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/12; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/43; Y10S24/47; Y10S24/48; Y10T; Y10T24/00; Y10T24/45; Y10T24/45005; Y10T24/45115; Y10T24/45131; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32057; Y10T403/32065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US971375A
Cited
US1234606A
Cited
US1393614A
Cited
US1627776A
Cited
US1913261A
Cited
US3267545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |