US2628606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Research Corp
•
Filing: 1950-06-24
•
Granted: 1953-02-17
•
Expires: 1970-06-24
Abstract
No abstract record available.
Inventors
- 👤 Draper Charles Stark
- 👤 Yao T Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:41
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/14; F02D41/1401; F02D41/1408; G; G05; G05B; G05B13/00; G05B13/02; G05B13/0205; G05B13/021; G05B13/022; G05B13/0225; G05D; G05D1/00; G05D1/0005; Y; Y10; Y10S; Y10S236/00; Y10S236/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2404568A
Cited
US2415799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |