Patent US1876268A successfully refreshed from Google Patents.
US1876268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus for automotive vehicles
Assignee: Tropic Aire Inc
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Filing: 1929-09-23
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Granted: 1932-09-06
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Expires: 1949-09-23
Abstract
No abstract record available.
Inventors
- 👤 Fred B Wines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:56
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00457; B60H1/00464
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) | 1935-09-06 | 1936-03-07 | 1936-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-06 | 1940-03-07 | 1940-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-06 | 1944-03-07 | 1944-09-06 | $7700.00 | Window Closed / Lapsed |