US2541428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal gas burner with grid outlet member
Assignee: UTILITY APPLIANCE CORP
•
Filing: 1946-04-12
•
Granted: 1951-02-13
•
Expires: 1966-04-12
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Leo
- 👤 Richard J Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:35
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/48; F23D14/58; F23D14/583; F23D14/586
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1682148A
Cited
US1919788A
Cited
DE543548C
Cited
GB190104546A
Cited
US1441051A
Cited
US1372724A
Cited
US1500513A
Cited
US1729149A
Cited
US1486668A
Cited
US1507791A
Cited
US1568771A
Cited
US1742607A
Cited
US1710147A
Cited
US2041706A
Cited
US1977947A
Cited
US2228150A
Cited
US2348011A
Cited
US2470880A
Cited
US2411313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |