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US2768847A
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Flange retained key drive type of mechanical coupling
Assignee: Neyrpic SA
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Filing: 1951-07-19
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Granted: 1956-10-30
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Expires: 1971-07-19
Abstract
No abstract record available.
Inventors
- 👤 Peyrin Henri
- 👤 Casacci Severin Xavier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:45
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/02; F16D1/04; F16D1/05; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US448966A
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US459907A
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US789222A
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US1924657A
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US2108848A
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US2360732A
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US2533868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |