US2582134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indirect heater for fluids
Assignee: Black Sivalls and Bryson Inc
•
Filing: 1949-04-30
•
Granted: 1952-01-08
•
Expires: 1969-04-30
Abstract
No abstract record available.
Inventors
- 👤 Garman O Kimmell
- 👤 Harvey L Chenault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:03
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/10; F24H1/12; F24H1/14; F24H1/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1597618A
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US647999A
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US1571889A
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US1921807A
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US2044797A
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GB392879A
Cited
US2091757A
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US2354932A
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US2360094A
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US2396235A
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US2496301A
Cited
US2427115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |