US2424304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: General Controls Co
•
Filing: 1943-06-05
•
Granted: 1947-07-22
•
Expires: 1963-06-05
Abstract
No abstract record available.
Inventors
- 👤 Lewis L Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:11
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/121; G05D23/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR750161A
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US2256970A
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US2312464A
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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) | 1950-07-21 | 1951-01-20 | 1951-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-21 | 1955-01-20 | 1955-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-21 | 1959-01-20 | 1959-07-22 | $7700.00 | Window Closed / Lapsed |