Patent US1511910A successfully refreshed from Google Patents.
US1511910A
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Change-speed mechanism for mechanically-propelled vehicles
Assignee: Rolls Royce PLC
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Filing: 1924-05-14
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Granted: 1924-10-14
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Expires: 1944-05-14
Abstract
No abstract record available.
Inventors
- 👤 Royce Frederick Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:46
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/12; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7033
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) | 1927-10-14 | 1928-04-14 | 1928-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-10-14 | 1932-04-14 | 1932-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-10-14 | 1936-04-14 | 1936-10-14 | $7700.00 | Window Closed / Lapsed |