US2558180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gear control mechanism
Assignee: Individual
•
Filing: 1946-10-23
•
Granted: 1951-06-26
•
Expires: 1966-10-23
Abstract
No abstract record available.
Inventors
- 👤 Millard L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:05
CPC Classifications
A; A63; A63H; A63H31/00; A63H31/02; A63H19/00; A63H19/02; A63H19/10; F; F16; F16H; F16H3/00; F16H2712/00; F16H2712/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19047; Y10T74/19219; Y10T74/19372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189704097A
Cited
US699963A
Cited
FR412397A
Cited
US1414233A
Cited
US1479167A
Cited
US2263711A
Cited
US2376917A
Cited
US2453483A
Cited
US2435930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |