Patent US2492990A successfully refreshed from Google Patents.
US2492990A
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Stabilizing system
Assignee: Westinghouse Electric Corp
•
Filing: 1943-11-06
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Granted: 1950-01-03
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Expires: 1963-11-06
Abstract
No abstract record available.
Inventors
- 👤 Clinton R Hanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:43
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/10; B60; B60G; B60G17/00; B60G17/06; B60G17/08; F; F16; F16F; F16F9/00; F16F9/32; F16F9/50; F16F9/504; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |