US2604085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for temperature regulation
Assignee: Foster Wheeler Inc
•
Filing: 1946-08-30
•
Granted: 1952-07-22
•
Expires: 1966-08-30
Abstract
No abstract record available.
Inventors
- 👤 Frisch Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:17
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2063441A
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US2133991A
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US2207646A
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US2319223A
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US2303146A
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US2421761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |