US3111591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor step counter
Assignee: RTX Corp
•
Filing: 1959-10-08
•
Granted: 1963-11-19
•
Expires: 1979-10-08
Abstract
No abstract record available.
Inventors
- 👤 Gregory F Conron
- 👤 Michael T Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:01
CPC Classifications
H; H03; H03K; H03K25/00; H03K3/00; H03K3/02; H03K3/35; H03K3/351; H03K4/00; H03K4/02; H03K4/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2573150A
Cited
US2653236A
Cited
US2717958A
Cited
US2751550A
Cited
US2849653A
Cited
US2866104A
Cited
US2873388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |