US2765393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fan heater
Assignee: NEW YORK SHIPBUILDING Corp
•
Filing: 1954-03-29
•
Granted: 1956-10-02
•
Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 John P Theisen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:20
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1926537A
Cited
US1954872A
Cited
US2118759A
Cited
US2120937A
Cited
US2158602A
Cited
US2619578A
Cited
US2583754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |