US2541433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner mixing tube
Assignee: Individual
•
Filing: 1948-07-10
•
Granted: 1951-02-13
•
Expires: 1968-07-10
Abstract
No abstract record available.
Inventors
- 👤 Ervin H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:43
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/62; F23D14/64; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87652
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1161940A
Cited
US1170765A
Cited
CH79417A
Cited
US1399788A
Cited
GB210301A
Cited
US1809425A
Cited
US1815322A
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 |