Patent US2667384A successfully refreshed from Google Patents.
US2667384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burner
Assignee: Individual
•
Filing: 1951-04-13
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Granted: 1954-01-26
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Expires: 1971-04-13
Abstract
No abstract record available.
Inventors
- 👤 Phipps Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:51
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/102; F23D11/12; F23D11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1075947A
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US999165A
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US1073830A
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US1160515A
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US1339709A
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US1417146A
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US1490683A
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US1445208A
Cited
US1506932A
Cited
US1611067A
Cited
US1600627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |