US2853255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1953-08-20
•
Granted: 1958-09-23
•
Expires: 1973-08-20
Abstract
No abstract record available.
Inventors
- 👤 Arne P Rasmussen
- 👤 Frank J Huddleston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:45
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0061; B; B64; B64C; B64C13/00; B64C13/24; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2148; Y10T74/2173; Y10T74/2179
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2057877A
Cited
US2205610A
Cited
US2487116A
Cited
US2471821A
Cited
US2558514A
Cited
US2678177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |