US2894183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor sub-assembly
Assignee: Sprague Electric Co
•
Filing: 1956-05-01
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Granted: 1959-07-07
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Expires: 1976-05-01
Abstract
No abstract record available.
Inventors
- 👤 Fermanian Armen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/20; H10D48/00; H10D48/30; H10D48/32; H10D48/34; H10D48/345; H10D99/00; H10P; H10P95/00; H10P95/50; H10W; H10W76/00; H10W76/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2744308A
Cited
US2696575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |