US3521089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric feedthrough device
Assignee: United States Atomic Energy Commission
•
Filing: 1968-06-05
•
Granted: 1970-07-21
•
Expires: 1988-06-05
Abstract
No abstract record available.
Inventors
- 👤 Othmar M Stuetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:35
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/28; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; H10; H10N; H10N30/00; H10N30/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2323030A
Cited
US2433963A
Cited
US2830201A
Cited
US2833999A
Cited
US3304534A
Cited
US3271622A
Cited
US3321648A
Cited
US3342284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |