US2620864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary oil burner
Assignee: Individual
•
Filing: 1946-06-25
•
Granted: 1952-12-09
•
Expires: 1966-06-25
Abstract
No abstract record available.
Inventors
- 👤 Ray Vida
- 👤 William A Ray
- 👤 Alvin W Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:10
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/04; F23D11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1716449A
Cited
US1582552A
Cited
US1784747A
Cited
US1897314A
Cited
US1996336A
Cited
US2200826A
Cited
US2374290A
Cited
US2395114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |