Patent US2774508A successfully refreshed from Google Patents.
US2774508A
Expired / Lapsed
US
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Motor head joint
Assignee: Individual
•
Filing: 1954-12-10
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Granted: 1956-12-18
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Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 John E Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:47
CPC Classifications
F; F02; F02F; F02F11/00; F02F11/002; F16; F16J; F16J13/00; F16J13/02; F16J13/10; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1295879A
Cited
US1767217A
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US2226494A
Cited
US2237029A
Cited
US2278881A
Cited
US2223320A
Cited
US2385754A
Cited
US2636637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |