US1842244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile ventilator, windshield, and handwheel heater
Assignee: Individual
•
Filing: 1930-04-22
•
Granted: 1932-01-19
•
Expires: 1950-04-22
Abstract
No abstract record available.
Inventors
- 👤 Frank A Boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:11
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/02; B60H1/14; B60H1/18
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) | 1935-01-18 | 1935-07-20 | 1936-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-18 | 1939-07-20 | 1940-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-18 | 1943-07-20 | 1944-01-19 | $7700.00 | Window Closed / Lapsed |