US2458683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequence control
Assignee: Bristol Co
•
Filing: 1943-01-07
•
Granted: 1949-01-11
•
Expires: 1963-01-07
Abstract
No abstract record available.
Inventors
- 👤 Robert D Cowherd
- 👤 Jr William H Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/06; G05B19/063; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2066; G05D16/2073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1009400A
Cited
US1972812A
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US2080232A
Cited
US2223415A
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US2246940A
Cited
US2275502A
Cited
US2222595A
Cited
US2312728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |