Patent US2597033A successfully refreshed from Google Patents.
US2597033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary oil burner
Assignee: Individual
•
Filing: 1949-12-13
•
Granted: 1952-05-20
•
Expires: 1969-12-13
Abstract
No abstract record available.
Inventors
- 👤 William R Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:07
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/04; F23D11/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1722504A
Cited
US1505746A
Cited
US1640081A
Cited
US1643436A
Cited
US1871952A
Cited
US2200278A
Cited
US2202822A
Cited
US2251055A
Cited
US2355897A
Cited
US2507006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |