US2526665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positional control system
Assignee: Unisys Corp
•
Filing: 1942-01-24
•
Granted: 1950-10-24
•
Expires: 1962-01-24
Abstract
No abstract record available.
Inventors
- 👤 Harvard L Hull
- 👤 Raymond C Goertz
- 👤 William C Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:32
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1472
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2291011A
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US1603137A
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US2115086A
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US2189823A
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US2160779A
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US2131759A
Cited
US2235551A
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US2331218A
Cited
US2414102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |