US2655992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer for gas burners
Assignee: Air Liquide SA
•
Filing: 1947-11-06
•
Granted: 1953-10-20
•
Expires: 1967-11-06
Abstract
No abstract record available.
Inventors
- 👤 Renard Suzanne Simone Denis Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:10
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/72; F23D14/82; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87619
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194740A
Cited
US1361804A
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GB189408320A
Cited
US804002A
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US887467A
Cited
US931623A
Cited
US1029691A
Cited
US1400024A
Cited
US1645337A
Cited
US1994841A
Cited
US2389166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |