US2440245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling of high-temperature bodies
Assignee: STC PLC
•
Filing: 1944-03-13
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Granted: 1948-04-27
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Expires: 1964-03-13
Abstract
No abstract record available.
Inventors
- 👤 Chevigny Paul Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:57
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/32; H01J19/36; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR362995A
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US1201271A
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US1453220A
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US1857077A
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US1874578A
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GB382996A
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US1978424A
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US2132174A
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US2146352A
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US2264102A
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US2346929A
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US2362911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |