US2397175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument dials
Assignee: Submarine Signal Co
•
Filing: 1938-07-23
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Granted: 1946-03-26
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Expires: 1958-07-23
Abstract
No abstract record available.
Inventors
- 👤 White Raeburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/72; Y; Y10; Y10S; Y10S116/00; Y10S116/36
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) | 1949-03-25 | 1949-09-24 | 1950-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-25 | 1953-09-24 | 1954-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-25 | 1957-09-24 | 1958-03-26 | $7700.00 | Window Closed / Lapsed |