US2794945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control system
Assignee: RCA Corp
•
Filing: 1954-10-28
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Granted: 1957-06-04
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Expires: 1974-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Philip R Celmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:42
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/26; H02P7/265; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/913; Y10S388/923; Y10S388/933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |