US2699893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Function control change mechanism
Assignee: Unisys Corp
•
Filing: 1950-04-01
•
Granted: 1955-01-18
•
Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 Charles A Parker
- 👤 Rainey Clifton King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:56
CPC Classifications
G; G06; G06C; G06C21/00; G06C21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1400842A
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US1800197A
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US2002362A
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US2214897A
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US2323205A
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US1260728A
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US1603215A
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US1837898A
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US1901162A
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US2492887A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |