US2072744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater for automobiles
Assignee: Bishop and Babcock Manufacturing Co
•
Filing: 1934-03-01
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Granted: 1937-03-02
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Expires: 1954-03-01
Abstract
No abstract record available.
Inventors
- 👤 Howard J Findley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:28
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00457; B60H1/00471
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) | 1940-03-01 | 1940-08-31 | 1941-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-01 | 1944-08-31 | 1945-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-01 | 1948-08-31 | 1949-03-02 | $7700.00 | Window Closed / Lapsed |