Patent US3373930A successfully refreshed from Google Patents.
US3373930A
Expired / Lapsed
US
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Fan structure
Assignee: Motors Liquidation Co
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Filing: 1966-04-29
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Granted: 1968-03-19
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Expires: 1986-04-29
Abstract
No abstract record available.
Inventors
- 👤 John D Rom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:44
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/02; F01P7/06; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/38; F04D29/382
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2032224A
Cited
US2114567A
Cited
US2213582A
Cited
US3038698A
Cited
US3042371A
Cited
GB947118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |