Patent US2044149A successfully refreshed from Google Patents.
US2044149A
Expired / Lapsed
US
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Automatic control system
Assignee: Westinghouse Electric Corp
•
Filing: 1930-10-29
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Granted: 1936-06-16
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Expires: 1950-10-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Brooks
- 👤 Norman H Willby
- 👤 Bascum O Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:10
CPC Classifications
B; B60; B60L; B60L15/00; B60L15/10; B60L15/12; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-06-16 | 1939-12-16 | 1940-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-06-16 | 1943-12-16 | 1944-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-06-16 | 1947-12-16 | 1948-06-16 | $7700.00 | Window Closed / Lapsed |