Patent US3159799A successfully refreshed from Google Patents.
Patent US3534936A successfully refreshed from Google Patents.
US3534936A
Expired / Lapsed
US
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Rotary operative vibration damping fastener
Assignee: United Carr Inc
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Filing: 1968-07-31
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Granted: 1970-10-20
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Expires: 1988-07-31
Abstract
No abstract record available.
Inventors
- 👤 Edward A Knowlton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:11
CPC Classifications
F; F16; F16F; F16F3/00; F16F3/08; F16F3/087; F16F3/0873; F16B; F16B21/00; F16B21/02; F16B29/00; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/907; Y10S411/908
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |