US2738837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary oil burners
Assignee: Individual
•
Filing: 1952-03-01
•
Granted: 1956-03-20
•
Expires: 1972-03-01
Abstract
No abstract record available.
Inventors
- 👤 John J Mcgillis
- 👤 Hugh D Mcgillis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:15
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/04; F23D11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1064467A
Cited
GB104246A
Cited
US1697254A
Cited
US1543235A
Cited
US1569580A
Cited
US1695030A
Cited
US1935318A
Cited
US2072587A
Cited
US2088742A
Cited
GB457841A
Cited
FR802855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |