US2975528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prime mover for clothes drier
Assignee: Motors Liquidation Co
•
Filing: 1957-11-29
•
Granted: 1961-03-21
•
Expires: 1977-11-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Shewmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:27
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/02; D06F58/04; D06F58/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1564770A
Cited
US2764820A
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US1936737A
Cited
US2393380A
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US2506516A
Cited
US2441801A
Cited
US2587646A
Cited
US2829287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |