US2647235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-responsive measuring device
Assignee: Westinghouse Electric Corp
•
Filing: 1947-10-30
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Granted: 1953-07-28
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Expires: 1967-10-30
Abstract
No abstract record available.
Inventors
- 👤 Hogenbirk Cornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:11
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/12; G12; G12B; G12B17/00; G12B17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US546802A
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US1992535A
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US2212730A
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US1005087A
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US1631684A
Cited
GB455923A
Cited
US2121667A
Cited
US2128277A
Cited
US2366292A
Cited
US2575715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |