US2867270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizing type oil burner
Assignee: Individual
•
Filing: 1955-07-18
•
Granted: 1959-01-06
•
Expires: 1975-07-18
Abstract
No abstract record available.
Inventors
- 👤 Witold B Brzozowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/02; F23C2700/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1718732A
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US1614359A
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US1975033A
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US2200278A
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US2220603A
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US2424765A
Cited
US2404647A
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US2549347A
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US2587140A
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US2716330A
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US2670032A
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US2701608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |