Patent US2895666A successfully refreshed from Google Patents.
US2895666A
Expired / Lapsed
US
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External rotor motor fan assembly
Assignee: LELAND ELECTRIC CANADA Ltd
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Filing: 1956-07-17
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Granted: 1959-07-21
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Expires: 1976-07-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Girdwood
- 👤 Elwaine W Shifflett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:08
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/02; F04D25/06; F04D25/0606; F04D25/0613; F04D25/064; F04D25/0646; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/4226; F04D29/424; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |