Patent US3373928A successfully refreshed from Google Patents.
US3373928A
Expired / Lapsed
US
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Propulsion fan
Assignee: General Electric Co
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Filing: 1966-08-29
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Granted: 1968-03-19
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Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 John R Erwin
- 👤 Arthur P Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:51
CPC Classifications
F; F01; F01D; F01D15/00; F01D15/08; B; B64; B64C; B64C11/00; B64C11/001; B64C29/00; B64C29/0008; B64C29/0016; F01D5/00; F01D5/02; F01D5/022; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3216654A
Cited
US997819A
Cited
US1707235A
Cited
US1780431A
Cited
US1880995A
Cited
US2153576A
Cited
US2273756A
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 |