US2999389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscope device with vibrating gas particles or particles of another sound transferring medium
Assignee: Svenska AB Gasaccumulator
•
Filing: 1959-03-09
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Granted: 1961-09-12
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Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Granqvist Carl-Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:24
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2514250A
Cited
US2546158A
Cited
US2466018A
Cited
US2627400A
Cited
US2683247A
Cited
US2753173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |