US2974502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient mounting of fan on shaft
Assignee: Westinghouse Electric Corp
•
Filing: 1959-07-09
•
Granted: 1961-03-14
•
Expires: 1979-07-09
Abstract
No abstract record available.
Inventors
- 👤 Remington S Radcliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:16
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/263; Y; Y10; Y10S; Y10S464/00; Y10S464/902; Y10S464/903; Y10T; Y10T403/00; Y10T403/47; Y10T403/473
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1781173A
Cited
US2164485A
Cited
US2269799A
Cited
US2558589A
Cited
US2638761A
Cited
US2792694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |