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Patent US2921171A successfully refreshed from Google Patents.
US2921171A
Expired / Lapsed
US
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Domestic appliance
Assignee: Motors Liquidation Co
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Filing: 1956-06-04
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Granted: 1960-01-12
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Expires: 1976-06-04
Abstract
No abstract record available.
Inventors
- 👤 George B Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:18
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/66; H05B6/666; G; G04; G04F; G04F3/00; G04F3/02; G04F3/027; G05; G05D; G05D23/00; G05D23/19; G05D23/1951
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733650A
Cited
US2400472A
Cited
US2595748A
Cited
US2632090A
Cited
US2648772A
Cited
US2744990A
Cited
US2839649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |