Patent US3448951A successfully refreshed from Google Patents.
US3448951A
Expired / Lapsed
US
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Vibration isolation system
Assignee: Individual
•
Filing: 1967-10-13
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Granted: 1969-06-10
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Expires: 1987-10-13
Abstract
No abstract record available.
Inventors
- 👤 David Vaughan Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:37
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/04; F16F15/06; F16F15/067; F16F1/00; F16F1/02; F16F1/04; F16F1/12; G; G01; G01G; G01G23/00; G01G23/06; F16F2228/00; F16F2228/06; F16F2236/00; F16F2236/02; F16F2236/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |