Patent US1726531A successfully refreshed from Google Patents.
US1726531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile heater
Assignee: Individual
•
Filing: 1927-09-29
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Granted: 1929-09-03
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Expires: 1947-09-29
Abstract
No abstract record available.
Inventors
- 👤 Frank J Andel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:04
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00321; B60H1/00335; F; F28; F28D; F28D7/00; F28D7/10; F28D7/106; F28F; F28F9/00; F28F9/001; F28F2275/00; F28F2275/08
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) | 1932-09-02 | 1933-03-04 | 1933-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-02 | 1937-03-04 | 1937-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-02 | 1941-03-04 | 1941-09-03 | $7700.00 | Window Closed / Lapsed |