US3424626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low silica welding composition
Assignee: L-Tec Co
•
Filing: 1965-01-05
•
Granted: 1969-01-28
•
Expires: 1985-01-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Coless
- 👤 Kenneth Woodrow Rimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:24
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/362; B23K35/02; B23K35/0255; B23K35/0261; B23K35/0266; B23K35/3601; B23K35/3602; B23K35/3603; B23K35/3605; B23K35/3607; B23K35/3608; B23K35/365; B23K35/368
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A FUSED WELDING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 30 PERCENT BY WEIGHT UP TO ABOUT 65 PERCENT BY WEIGHT OF AT LEAST ONE OXIDE TAKEN FROM THE CLASS CONSISTING OF AL2O3, MGO, TIO2, ZRO2 AND CAO AND THE BALANCE BEING A FLUORINE BEARING COMPOUND TAKEN FROM THE CLASS CONSISTING OF CALCIUM FLUORIDE, SODIUM FLUORIDE, MAGNESIUM FLUORIDE, LITHIUM FLUORIDE, POTASSIUM FLUORIDE AND CRYOLITE, SAID COMPOSITION BEING SUBSTANTIALLY FREE OF SILICA.
Claim 2
Dependent Claim
70 words
A FUSED WELDING COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 30 PERCENT BY WEIGHT UP TO ABOUT 65 PERCENT BY WEIGHT OF AT LEAST ONE OXIDE TAKEN FROM THE CLASS CONSISTING OF AL2O3, MGO, TIO2, ZRO2 AND CAO AND THE BALANCE BEING A FLUORINE BEARING COMPOUND TAKEN FROM THE CLASS CONSISTING OF CALCIUM FLUORIDE, SODIUM FLUORIDE, MAGNESIUM FLUORIDE, LITHIUM FLUORIDE, POTASSIUM FLUORIDE AND CRYOLITE, SAID COMPOSITION BEING SUBSTANTIALLY FREE OF SILICA.
References Cited (Backward Citations)
US860071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |