US2939322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension systems for sensitive elements
Assignee: Sperry Gyroscope Co Ltd
•
Filing: 1955-03-23
•
Granted: 1960-06-07
•
Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Sedgfield Hugh Brougham
- 👤 Whalley Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:04
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1293
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1802108A
Cited
US2430709A
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US2384838A
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US2415983A
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US2377212A
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US2746301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |