Patent US2496857A successfully refreshed from Google Patents.
US2496857A
Expired / Lapsed
US
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Reduction gear unit
Assignee: RTX Corp
•
Filing: 1947-11-14
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Granted: 1950-02-07
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Expires: 1967-11-14
Abstract
No abstract record available.
Inventors
- 👤 Cronstedt Val
- 👤 Alexander H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:04
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/28; F16H1/2809; F16H1/2836; F16H37/00; F16H2700/00; F16H2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19121; Y10T74/19628
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) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |