US2499760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: RUGGLES KLINGEMANN Manufacturing CO
•
Filing: 1947-04-29
•
Granted: 1950-03-07
•
Expires: 1967-04-29
Abstract
No abstract record available.
Inventors
- 👤 James L Kimball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:52
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)
US1575725A
Cited
US2200318A
Cited
US2185671A
Cited
US2196316A
Cited
US2170402A
Cited
US2296325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |