US2587296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of obtaining torch flame
Assignee: Individual
•
Filing: 1949-10-31
•
Granted: 1952-02-26
•
Expires: 1969-10-31
Abstract
No abstract record available.
Inventors
- 👤 Ducamp Albert Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:52
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
THE PROCESS OF BRAZING AND WELDING METAL PARTS BY MEANS OF A TORCH WHICH COMPRISES INTRODUCING INTO THE TORCH OPERATING GASES COMPLEXES FORMED BY AN ALKIL GLYCERROBORATE AND METHYLGLYCEROBORATE DISSOLVED IN METHYL ALCOHOL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |