Patent US2903767A successfully refreshed from Google Patents.
US2903767A
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Chain securing device with tilting block
Assignee: Eastern Rotorcraft Corp
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Filing: 1953-11-27
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Granted: 1959-09-15
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Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Huber John Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:49
CPC Classifications
F; F16; F16G; F16G17/00; B; B60; B60P; B60P3/00; B60P3/06; B60P3/07; B60P3/073; B64; B64D; B64D9/00; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US922929A
Cited
US1253455A
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US1384001A
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FR695882A
Cited
US1963634A
Cited
US2302793A
Cited
US2499753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |