Patent US2855767A successfully refreshed from Google Patents.
US2855767A
Expired / Lapsed
US
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Yieldable coupling
Assignee: Svenska Rotor Maskiner AB
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Filing: 1953-03-17
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Granted: 1958-10-14
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Expires: 1973-03-17
Abstract
No abstract record available.
Inventors
- 👤 Ahlen Karl Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:25
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/76; F16D3/77; F16D3/78; F16D3/79
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1562437A
Cited
US2386017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |