US3144804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring structure for releasable fastener pins
Assignee: WEDGELOCK CORP OF CALIFORNIA
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Filing: 1961-06-30
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Granted: 1964-08-18
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Malcolm P Harwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:04
CPC Classifications
B; B25; B25B; B25B31/00; B25B31/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T403/00; Y10T403/70; Y10T403/7062
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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |