US3494175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure commutator mode switch
Assignee: United States Department of the Navy
•
Filing: 1968-09-05
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Granted: 1970-02-10
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Expires: 1988-09-05
Abstract
No abstract record available.
Inventors
- 👤 Richard T Cusick
- 👤 Wilbur J Fleagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
G; G01; G01M; G01M9/00; F; F15; F15B; F15B19/00; G01L; G01L19/00; G01L19/0007; G01L19/0015; G05; G05B; G05B11/00; G05B11/44; G05B11/58; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501; Y10T137/86509; Y10T137/86558; Y10T137/86863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US882141A
Cited
US1681551A
Cited
US2918938A
Cited
US2947165A
Cited
US3008490A
Cited
US3238971A
Cited
US3326046A
Cited
US3246667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |