US2765842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon burner head
Assignee: Preferred Utilities Manufacturing Corp
•
Filing: 1952-03-05
•
Granted: 1956-10-09
•
Expires: 1972-03-05
Abstract
No abstract record available.
Inventors
- 👤 Harry E Lake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:30
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/40; F23D11/408
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2603280A
Cited
US1451063A
Cited
FR492174A
Cited
US1910735A
Cited
US1781236A
Cited
US1953483A
Cited
US2156121A
Cited
US2221519A
Cited
US2502664A
Cited
US2516063A
Cited
US2560074A
Cited
US2527503A
Cited
US2665748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |