US2540989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motion-reproducing device
Assignee: Unisys Corp
•
Filing: 1936-12-22
•
Granted: 1951-02-06
•
Expires: 1956-12-22
Abstract
No abstract record available.
Inventors
- 👤 William H Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:38
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/128; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19535; Y10T74/1956
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1468712A
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US1428326A
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DE403696C
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US1544646A
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US2026912A
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US1906831A
Cited
US1919191A
Cited
US2049375A
Cited
US2136213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |