US2549461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism
Assignee: Westinghouse Electric Corp
•
Filing: 1948-04-05
•
Granted: 1951-04-17
•
Expires: 1968-04-05
Abstract
No abstract record available.
Inventors
- 👤 Clayton L Haller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:28
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1852102A
Cited
US2128869A
Cited
US2207634A
Cited
US2295298A
Cited
US2258258A
Cited
US2224983A
Cited
US2445021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |