US2537086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating device
Assignee: Timken Detroit Axle Co
•
Filing: 1944-07-12
•
Granted: 1951-01-09
•
Expires: 1964-07-12
Abstract
No abstract record available.
Inventors
- 👤 Milton A Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:18
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/22; F24H1/24; F24H1/26; F24H9/00; F24H9/18; F24H9/1809; F24H9/1832; F24H9/1836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490880A
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US596486A
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US766889A
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US1029300A
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US1046178A
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US1602869A
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US1609661A
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US1889270A
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US1954803A
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US1964306A
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US1991557A
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US2130471A
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US2064080A
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GB512994A
Cited
US2306891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |