US2715399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel burning space heater
Assignee: Individual
•
Filing: 1950-08-22
•
Granted: 1955-08-16
•
Expires: 1970-08-22
Abstract
No abstract record available.
Inventors
- 👤 Witt George
- 👤 Howard W Miller
- 👤 Lyle A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:35
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; F24H3/08; F24H3/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1911985A
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US2037070A
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US2160269A
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US2192920A
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US2512384A
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US2517446A
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US2579047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |