US2770764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load control with single control tube
Assignee: Westinghouse Electric Corp
•
Filing: 1954-02-08
•
Granted: 1956-11-13
•
Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 Colin H Mcadie
- 👤 Hooper Charles Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:51
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1959804A
Cited
US2471422A
Cited
US2527718A
Cited
US2538494A
Cited
US2627594A
Cited
US2586603A
Cited
US2677086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |