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US2306796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater
Assignee: Old Carco LLC
•
Filing: 1939-10-07
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Granted: 1942-12-29
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Expires: 1959-10-07
Abstract
No abstract record available.
Inventors
- 👤 Allen C Staley
- 👤 George L Mccain
- 👤 Winthrop S Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:24
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00021; B60H1/00035; B60H1/00042; B60H2001/00078; B60H2001/00085; B60H2001/00114; B60H2001/00121; B60H2001/0015; B60H2001/00157; B60H2001/00185; B60H2001/00192; B60H1/00207; B60H2001/00214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-12-28 | 1946-06-29 | 1946-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-28 | 1950-06-29 | 1950-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-28 | 1954-06-29 | 1954-12-29 | $7700.00 | Window Closed / Lapsed |