Patent US2930640A successfully refreshed from Google Patents.
US2930640A
Expired / Lapsed
US
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Flexible joint
Assignee: Motors Liquidation Co
•
Filing: 1954-08-30
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Granted: 1960-03-29
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Expires: 1974-08-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Davis
- 👤 Allen L Everitt
- 👤 James E Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:28
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/38; B; B25; B25B; B25B27/00; B25B27/14; B25B27/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T403/00; Y10T403/45; Y10T403/455; Y10T403/458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1461130A
Cited
US1961536A
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US1888642A
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US2031797A
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US2572215A
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US2608751A
Cited
US2550564A
Cited
US2661969A
Cited
US2725148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |