US3309239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal pastes for use in brazing
Assignee: Edwards High Vacuum International Ltd
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Filing: 1964-01-27
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Granted: 1967-03-14
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Harris Edward Percival
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:02
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3612
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A BRAZING PASTE CONSISTING OF A MIXTURE CONTAINING ABOUT 86 PERCENTAGE PARTS BY WEIGHT OF A METAL POWDER AND ABOUT 14 PERCENTAGE PARTS BY WEIGHT OF A BINDING MEDIUM, SAID BINDING MEDIUM CONSISTING ESSENTIALLY OF ABOUT 0.5 PERCENTAGE PARTS BY WEIGHT OF ETHYL HYDROXYETHYL CELLULOSE, ABOUT 0.3 PERCENTAGE PARTS BY WEIGHT OF A PLASTICISER, ABOUT 0.2 PERCENTAGE PARTS BY WEIGHT OF A PRESERVATIVE, ABOUT 0.4 PERCENTAGE PARTS OF AN ADHESIVE MATERIAL ADAPATED TO INCREASE THE ADHESION OF THE PASTE TO THE SURFACES TO BE BRAZED, AND THE BALANCE OF ABOUT 12.6 PERCENTAGE PARTS BY WEIGHT OF WATER, ALL WEIGHTS BEING BASED ON THE TOTAL WEIGHT OF THE MIXTRUE.
Claim 2
Dependent Claim
108 words
A BRAZING PASTE CONSISTING OF A MIXTURE CONTAINING ABOUT 86 PERCENTAGE PARTS BY WEIGHT OF A METAL POWDER AND ABOUT 14 PERCENTAGE PARTS BY WEIGHT OF A BINDING MEDIUM, SAID BINDING MEDIUM CONSISTING ESSENTIALLY OF ABOUT 0.5 PERCENTAGE PARTS BY WEIGHT OF ETHYL HYDROXYETHYL CELLULOSE, ABOUT 0.3 PERCENTAGE PARTS BY WEIGHT OF A PLASTICISER, ABOUT 0.2 PERCENTAGE PARTS BY WEIGHT OF A PRESERVATIVE, ABOUT 0.4 PERCENTAGE PARTS OF AN ADHESIVE MATERIAL ADAPATED TO INCREASE THE ADHESION OF THE PASTE TO THE SURFACES TO BE BRAZED, AND THE BALANCE OF ABOUT 12.6 PERCENTAGE PARTS BY WEIGHT OF WATER, ALL WEIGHTS BEING BASED ON THE TOTAL WEIGHT OF THE MIXTRUE.
References Cited (Backward Citations)
US3073270A
Cited
US3149007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |