US3250508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
All-directional frictional damper
Assignee: Korfund Dynamics Corp
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Filing: 1964-03-26
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Granted: 1966-05-10
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Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Nicholas F Kfoury
- 👤 Baratoff Paul
- 👤 Billy Y K Mui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:09
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
A VIBRATION DAMPER COMPRISING A SHAFT, FRICTION MEMBERS ENGAGING SAID SHAFT SLIDABLY AND FRICTIONALLY RESISTING AXIAL SLIDING MOVEMENT OF SAID SHAFT, A PAIR OF FRICTION ELEMENTS RESPECTIVLY DISPOSED IN SPACED-APART PLANES SUBSTANTIALLY PERPENDICULAR TO SAID SHAFT, AND MEANS IN FRICTIONAL ENGAGEMENT WITH SAID PAIR OF FRICTION ELE-
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |