US2590875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative tracking apparatus
Assignee: Unisys Corp
•
Filing: 1943-04-30
•
Granted: 1952-04-01
•
Expires: 1963-04-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph H Lancor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:57
CPC Classifications
F; F41; F41G; F41G3/00; F41G3/06; Y; Y10; Y10T; Y10T74/00; Y10T74/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1849611A
Cited
US1345700A
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US1464208A
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US1831595A
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US2071424A
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US2113436A
Cited
US2105985A
Cited
US2200130A
Cited
US2414102A
Cited
US2433006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |