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US2300404A
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Remote reading magnetic compass
Assignee: Sperry Gyroscope Co Inc
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Filing: 1940-01-10
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Granted: 1942-11-03
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Expires: 1960-01-10
Abstract
No abstract record available.
Inventors
- 👤 Leslie F Carter
- 👤 Anscott William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:33
CPC Classifications
G; G01; G01C; G01C17/00; G01C17/02; G01C17/04; G01C17/18; G01C19/00; G01C19/02; G01C19/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-11-02 | 1946-05-04 | 1946-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-02 | 1950-05-04 | 1950-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-02 | 1954-05-04 | 1954-11-03 | $7700.00 | Window Closed / Lapsed |