Patent US3481158A successfully refreshed from Google Patents.
US3481158A
Expired / Lapsed
US
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Flexible coupling
Assignee: Kaman Corp
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Filing: 1968-07-22
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Granted: 1969-12-02
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Expires: 1988-07-22
Abstract
No abstract record available.
Inventors
- 👤 Robert J Mayerjak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:25
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/60; F16D3/72
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |