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Patent US2874542A successfully refreshed from Google Patents.
US2874542A
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US
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Motion reproducing mechanism
Assignee: Unisys Corp
•
Filing: 1943-04-21
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Granted: 1959-02-24
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Expires: 1963-04-21
Abstract
No abstract record available.
Inventors
- 👤 James D Tear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:32
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/02; F15B9/08; F15B9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2189823A
Cited
GB464891A
Cited
US2171005A
Cited
US2114005A
Cited
US2263315A
Cited
US2244296A
Cited
US2243603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |