US2347580A
Expired / Lapsed
US
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Reduction gearing apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1942-10-03
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Granted: 1944-04-25
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Expires: 1962-10-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Stearns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:53
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/03; F16H2057/02039; F16H2057/02043; F16H2057/0206; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19633; Y10T74/1987; Y10T74/19893; Y10T74/19935; Y10T74/19949; Y10T74/19963
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-04-25 | 1947-10-25 | 1948-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-25 | 1951-10-25 | 1952-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-25 | 1955-10-25 | 1956-04-25 | $7700.00 | Window Closed / Lapsed |