US3391446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum brazing
Assignee: United States Atomic Energy Commission
•
Filing: 1965-08-30
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Granted: 1968-07-09
•
Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert L Buttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:07
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/19; B23K35/00; B23K35/001; B23K35/002; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A METHOD OF BONDING A BODY HAVING AN ALUMINUM SURFACE TO A BODY HAVING A SURFACE OF IRON, NIOBIUM, TUNGSTEN, OR MOLYBDENUM METAL, SAID METHOD COMPRISING: COATING SAID METAL SURFACE WITH RHODIUM, DISPOSING AN ALUMINUM BASE BRAZING MATERIAL IN CONTACT WITH AND BETWEEN SAID RHODIUM COATED SURFACE AND SAID ALUMINUM SURFACE, AND MAINTAINING SAID SURFACES AND MATERIAL IN CONTACTING RELATION WHILE HEATING SAID BODIES AND MATERIAL IN A NON-OXIDIZING AMBIENT FOR MELTING SAID BRAZING MATERIAL.
Claim 2
Independent Claim
75 words
A METHOD OF BONDING A BODY HAVING AN ALUMINUM SURFACE TO A BODY HAVING A SURFACE OF IRON, NIOBIUM, TUNGSTEN, OR MOLYBDENUM METAL, SAID METHOD COMPRISING: COATING SAID METAL SURFACE WITH RHODIUM, DISPOSING AN ALUMINUM BASE BRAZING MATERIAL IN CONTACT WITH AND BETWEEN SAID RHODIUM COATED SURFACE AND SAID ALUMINUM SURFACE, AND MAINTAINING SAID SURFACES AND MATERIAL IN CONTACTING RELATION WHILE HEATING SAID BODIES AND MATERIAL IN A NON-OXIDIZING AMBIENT FOR MELTING SAID BRAZING MATERIAL.
References Cited (Backward Citations)
US2719797A
Cited
US3044156A
Cited
US3107422A
Cited
US3132928A
Cited
US3276113A
Cited
US3312539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |