US2537227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carriage shift mechanism
Assignee: —
•
Filing: —
•
Granted: 1951-01-09
•
Expires: 1968-01-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:40
CPC Classifications
G; G06; G06C; G06C15/00; G06C15/08; G06C15/14; F; F21; F21L; F21L4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1983625A
Cited
US1986888A
Cited
US2033088A
Cited
US2034345A
Cited
US2243075A
Cited
DE381134C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |