US3033672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding material and method of welding
Assignee: Erico International Corp
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Filing: 1960-11-14
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Granted: 1962-05-08
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Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Rejdak Hattie Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:18
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; B; B23; B23K; B23K35/00; B23K35/22; B23K35/34; C22B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN EXOTHERMIC REACTION MIXTURE CONSISTING ESSENTIALLY OF COPPER OXIDE, A VANADIUM COMPOUND NON-GAS GENERATING UP TO AT LEAST 3500*F. PRESENT IN AN AMOUNT FROM ABOUT 0.8 PERCENT TO ABOUT 5 PERCENT BY WEIGHT OF THE TOTAL MIXTURE CALCULATED AS VANADIUM PENTOXIDE, A SUFFICIENT AMOUNT OF A REDUCING AGENT TO REDUCE SUCH COPPER OXIDE TO MOLTEN COPPER AND CONVERT SUCH VANADIUM COMPOUND TO MOLTEN VANADIUM, AND SUFFICIENT COPPER TO RENDER SUCH REDUCTION AND CONVERSION REACTIONS NON-EXPLOSIVE IN CHARACTER WHILE PROVIDING A HIGHLY HEATED CHARGE OF MOLTEN METAL.
Claim 2
Dependent Claim
86 words
AN EXOTHERMIC REACTION MIXTURE CONSISTING ESSENTIALLY OF COPPER OXIDE, A VANADIUM COMPOUND NON-GAS GENERATING UP TO AT LEAST 3500*F. PRESENT IN AN AMOUNT FROM ABOUT 0.8 PERCENT TO ABOUT 5 PERCENT BY WEIGHT OF THE TOTAL MIXTURE CALCULATED AS VANADIUM PENTOXIDE, A SUFFICIENT AMOUNT OF A REDUCING AGENT TO REDUCE SUCH COPPER OXIDE TO MOLTEN COPPER AND CONVERT SUCH VANADIUM COMPOUND TO MOLTEN VANADIUM, AND SUFFICIENT COPPER TO RENDER SUCH REDUCTION AND CONVERSION REACTIONS NON-EXPLOSIVE IN CHARACTER WHILE PROVIDING A HIGHLY HEATED CHARGE OF MOLTEN METAL.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |