Patent US2533267A successfully refreshed from Google Patents.
US2533267A
Expired / Lapsed
US
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Tracking apparatus
Assignee: Unisys Corp
•
Filing: 1944-09-08
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Granted: 1950-12-12
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Expires: 1964-09-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph H Lancor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:51
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/422
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2412631A
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US2231929A
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US2147810A
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US2409448A
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US2399426A
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US2422068A
Cited
US2427029A
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US2422333A
Cited
US2448007A
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US2473175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |