US2875385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistors
Assignee: Pye Electronic Products Ltd
•
Filing: 1955-02-14
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Granted: 1959-02-24
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 Fuller Dennis Quintrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:52
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/70; H10D; H10D99/00; H10W76/00; H10W76/10; H10W76/12; H10W76/161; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2646536A
Cited
US2691750A
Cited
US2644914A
Cited
US2765516A
Cited
FR1080034A
Cited
US2754455A
Cited
US2825014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |