Patent US2960641A successfully refreshed from Google Patents.
US2960641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed semiconductor device and manufacture thereof
Assignee: GTE Sylvania Inc
•
Filing: 1958-06-23
•
Granted: 1960-11-15
•
Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Cohen Gene
- 👤 Frank H Tobin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:01
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/40; H10W76/42; H10W76/47; H10W72/00; H10W76/10; H10W76/12; H10W76/161
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2122392A
Cited
US2757439A
Cited
US2853661A
Cited
US2857560A
Cited
US2861226A
Cited
US2881370A
Cited
US2921245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |