US2498199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low melting flux
Assignee: Garrett Corp
•
Filing: 1945-12-03
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Granted: 1950-02-21
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Expires: 1965-12-03
Abstract
No abstract record available.
Inventors
- 👤 Block Harold Hutchin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN THE BRAZING OF LIGHT METAL ALLOYS, THE IMPROVEMENT COMPRISING CLEANING THE SURFACE TO BE BRAZED BY APPLYING THERETO A BRAZING FLUX CONSISTING ESSENTIALLY OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES IN WHICH HAS BEEN INCORPORATED A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SILICON HALIDES AND A SILICON HYDRIDES, AND HEATING THE FLUX COVERED SURFACE.
Claim 2
Dependent Claim
58 words
IN THE BRAZING OF LIGHT METAL ALLOYS, THE IMPROVEMENT COMPRISING CLEANING THE SURFACE TO BE BRAZED BY APPLYING THERETO A BRAZING FLUX CONSISTING ESSENTIALLY OF ALKALI METAL HALIDES AND ALKALINE EARTH METAL HALIDES IN WHICH HAS BEEN INCORPORATED A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF SILICON HALIDES AND A SILICON HYDRIDES, AND HEATING THE FLUX COVERED SURFACE.
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) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |