US3171734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing compositions having polyvinyl alcohol as a binder
Assignee: Powder Melting Corp
•
Filing: 1963-09-24
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Granted: 1965-03-02
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Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Jerome A Berson
- 👤 Arthur T Cape
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:55
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612; B23K35/24; B23K35/30; B23K35/302; B23K35/3033; B23K35/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A BRAZING COMPOSITION CONSISTING OF FROM ABOUT 5% TO ABOUT 11% BY WEIGHT OF POLYVINYL ALCOHOL, FROM ABOUT .5 TO ABOUT 5% BY WEIGHT OF WATER, AND THE BALANCE ESSENTIALLY ALL A METALLIC BRAZING POWDER SELECTED FROM THE GROUP CONSISTING OF NICKEL-BASE ALLOYS, MANGANESE-BASE ALLOYS, COPPER-BASE ALLOYS, COBALT-BASE ALLOYS, AND COPPER.
Claim 2
Dependent Claim
51 words
A BRAZING COMPOSITION CONSISTING OF FROM ABOUT 5% TO ABOUT 11% BY WEIGHT OF POLYVINYL ALCOHOL, FROM ABOUT .5 TO ABOUT 5% BY WEIGHT OF WATER, AND THE BALANCE ESSENTIALLY ALL A METALLIC BRAZING POWDER SELECTED FROM THE GROUP CONSISTING OF NICKEL-BASE ALLOYS, MANGANESE-BASE ALLOYS, COPPER-BASE ALLOYS, COBALT-BASE ALLOYS, AND COPPER.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |