US2571106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross control system
Assignee: Unisys Corp
•
Filing: 1944-11-30
•
Granted: 1951-10-16
•
Expires: 1964-11-30
Abstract
No abstract record available.
Inventors
- 👤 Richard S Brannin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:31
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1869840A
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US2190390A
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US2190391A
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US2293889A
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US2162862A
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US2221748A
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US2196385A
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US2351977A
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US2373315A
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US2371388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |