Patent US3029802A successfully refreshed from Google Patents.
US3029802A
Expired / Lapsed
US
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Automobile heater
Assignee: Otto Bernz Co Inc
•
Filing: 1958-10-15
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Granted: 1962-04-17
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Expires: 1978-10-15
Abstract
No abstract record available.
Inventors
- 👤 Milo E Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:35
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/18; B; B60; B60H; B60H1/00; B60H1/0025; B60H1/00264; F23D14/28
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |