US2677797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor control system for scanning devices
Assignee: United States Department of the Navy
•
Filing: 1945-12-28
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Granted: 1954-05-04
•
Expires: 1965-12-28
Abstract
No abstract record available.
Inventors
- 👤 Sher Rudolph
- 👤 David B Nichinson
- 👤 Clarence W Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:42
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/04; H01Q3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1976935A
Cited
US2147674A
Cited
US2297719A
Cited
US2416229A
Cited
US2458175A
Cited
US2502975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |