US3495475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Series tuned viscous dampers
Assignee: HYDRAULIC-HOUDAILLE INC BY CHANGE OF NAME FROM HOUDAILLE HYDRAULICS Inc A DEL CORP
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Filing: 1967-12-29
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Granted: 1970-02-17
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Expires: 1987-12-29
Abstract
No abstract record available.
Inventors
- 👤 Rollin Douglas Rumsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:34
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/16; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2122; Y10T74/2125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2834225A
Cited
US2966074A
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US3049941A
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US3262334A
Cited
US3264898A
Cited
US3285097A
Cited
US3303719A
Cited
US3373633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |