US2887628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device construction
Assignee: General Electric Co
•
Filing: 1956-06-12
•
Granted: 1959-05-19
•
Expires: 1976-06-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Conrad H Zierdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:16
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/10; H10W40/70; H10W72/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2740075A
Cited
US2820929A
Cited
US2738452A
Cited
US2725505A
Cited
US2825014A
Cited
US2777975A
Cited
US2817048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |