US3116142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding material
Assignee: Erico International Corp
•
Filing: 1959-12-23
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Granted: 1963-12-31
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Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 Rolf E Rylander
- 👤 Gelfand Leonard
- 👤 Lynn J Ebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:01
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/34; Y; Y10; Y10S; Y10S75/00; Y10S75/959
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN A WELDING COMPOSITION FOR USE IN AN EXOTHERMIC REACTION CONSISTING ESSENTIALLY OF A MIXTURE OF COPPER OXIDE AND ALUMINUM AS THE SOLE REDUCING AGENT, THE IMPROVEMENTS OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF CHROMINUM, NICKEL, COLUMBIUM, MOLYBDENUM, AND REDUCIBLE COMPOUNDS THEREOF, SAID ADDITIVE BEING PRESENT IN AN AMOUNT BASED ON THE ADDITIVE METAL FROM ABOUT 0.2 PERCENT TO ABOUT 10 PERCENT WEIGHT OF THE MIXTURE.
Claim 2
Dependent Claim
68 words
IN A WELDING COMPOSITION FOR USE IN AN EXOTHERMIC REACTION CONSISTING ESSENTIALLY OF A MIXTURE OF COPPER OXIDE AND ALUMINUM AS THE SOLE REDUCING AGENT, THE IMPROVEMENTS OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF CHROMINUM, NICKEL, COLUMBIUM, MOLYBDENUM, AND REDUCIBLE COMPOUNDS THEREOF, SAID ADDITIVE BEING PRESENT IN AN AMOUNT BASED ON THE ADDITIVE METAL FROM ABOUT 0.2 PERCENT TO ABOUT 10 PERCENT WEIGHT OF THE MIXTURE.
References Cited (Backward Citations)
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US2768893A
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US2755182A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |