US2561264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasifying oil burner for heating purposes
Assignee: Individual
•
Filing: 1947-04-30
•
Granted: 1951-07-17
•
Expires: 1967-04-30
Abstract
No abstract record available.
Inventors
- 👤 George M Burgess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:09
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/02; F23C2700/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US668856A
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US1761537A
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US1684288A
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US1690015A
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US1753145A
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GB319404A
Cited
US1977478A
Cited
DE634194C
Cited
US2117968A
Cited
GB451452A
Cited
DE636448C
Cited
US2313568A
Cited
US2363192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |