Patent US3451455A successfully refreshed from Google Patents.
US3451455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener for anchoring a nut
Assignee: United Carr Inc
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Filing: 1967-08-14
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Granted: 1969-06-24
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Expires: 1987-08-14
Abstract
No abstract record available.
Inventors
- 👤 Leslie Parkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:46
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/048; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10S411/969; Y10S411/971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |