US3146980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock preventive mounting structure
Assignee: North American Aviation Corp
•
Filing: 1962-09-14
•
Granted: 1964-09-01
•
Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 Sandra W Macgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:03
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/12; F16F7/125; Y; Y10; Y10T; Y10T225/00; Y10T225/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
A PIEZOELECTRIC SHEAR-PIN COMPOSED OF MATERIAL WHICH RENDERS SAID PIN RUPTURABLE IN RESPONSE TO AN ELECTRIC SIGNAL.
References Cited (Backward Citations)
US1610414A
Cited
US2633543A
Cited
US2507636A
Cited
US2665101A
Cited
US2900536A
Cited
US2964272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |