US2432314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline burning hot-air heater
Assignee: Motorola Solutions Inc
•
Filing: 1941-08-30
•
Granted: 1947-12-09
•
Expires: 1961-08-30
Abstract
No abstract record available.
Inventors
- 👤 Harry B Holthouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:42
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/22; B60H1/2203; B60H1/2212; F; F02; F02N; F02N19/00; F02N19/02; F02N19/04; F02N19/10; B60H2001/2268; B60H2001/2278
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-08 | 1951-06-09 | 1951-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-08 | 1955-06-09 | 1955-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-08 | 1959-06-09 | 1959-12-09 | $7700.00 | Window Closed / Lapsed |