Patent US3537305A successfully refreshed from Google Patents.
US3537305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transverse piezoresistance and pinch effect electromechanical transducers
Assignee: National Aeronautics and Space Administration
•
Filing: 1968-09-19
•
Granted: 1970-11-03
•
Expires: 1988-09-19
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Rindner
- 👤 Ernest E Pittelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:09
CPC Classifications
H; H04; H04R; H04R21/00; H04R21/02; G; G01; G01L; G01L1/00; G01L1/18; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2869001A
Cited
US2736822A
Cited
US2979668A
Cited
US3396283A
Cited
US3145563A
Cited
US3160762A
Cited
US3251222A
Cited
US3213681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |