Patent US1782001A successfully refreshed from Google Patents.
US1782001A
Expired / Lapsed
US
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Variable-speed mechanism
Assignee: KARL SALBERG
•
Filing: 1929-11-29
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Granted: 1930-11-18
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Expires: 1949-11-29
Abstract
No abstract record available.
Inventors
- 👤 James V Crichton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:43
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/06; B60K17/08; F; F16; F16H; F16H3/00; F16H3/44; F16H3/72; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20189
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) | 1933-11-17 | 1934-05-19 | 1934-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-11-17 | 1938-05-19 | 1938-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-11-17 | 1942-05-19 | 1942-11-18 | $7700.00 | Window Closed / Lapsed |