US2582331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable burner for gas heaters
Assignee: OTTO W WEGENER
•
Filing: 1950-04-24
•
Granted: 1952-01-15
•
Expires: 1970-04-24
Abstract
No abstract record available.
Inventors
- 👤 Paul W Hoeffken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:05
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/08; F24C3/082; F23; F23C; F23C5/00; F23C5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1385827A
Cited
US1479868A
Cited
US1686056A
Cited
US1844932A
Cited
US1862182A
Cited
US2131221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |