US2842464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing an electrical resistance on glass
Assignee: Compagnie de Saint Gobain SA
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Filing: 1954-03-02
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Granted: 1958-07-08
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Expires: 1974-03-02
Abstract
No abstract record available.
Inventors
- 👤 George A Dickinson
- 👤 Solomon E Kay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:52
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
THE METHOD OF PRODUCING AN ELECTRICAL RESISTANCE ON THE SURFACE OF TOUGHENED PLATE GLASS, WHICH CONSISTS OF APPLYING RESISTANCE METAL TO THE WHOLE OF THE SURFACE ON WHICH THE RESISTANCE IS TO BE PRODUCED, COVERING THE METAL WITH A RESIST TO PRODUCE ON THE METAL THE DESIRED PATTERN FOR THE RESISTANCE, CHEMICALLY REMOVING THE EXPOSED METAL BY SUBJECTING THE EXPOSED PARTS TO A CHEMICAL WHICH REMOVES THE METAL BUT WHICH HAS NO ACTION ON THE RESIST, CHARACTERISED IN THAT THE RESISTANCE METAL IS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND AN ALUMINUM ALLOY AND HAS A FUSING TEMPERATURE HIGHER THAN THAT OF THE GLASS, SAID METAL BEING APPLIED TO THE PLATE GLASS IN MOLTEN FORM TO FUSE THE SURFACE OF THE GLASS AND TO FORM A UNIFORM COATING THEREON WHICH IS SELF-BONDED TO THE GLASS, AND THE REMOVAL OF EXPOSED METAL IS EFFECTED BY A HYDROCHLORIC ACID SOLUTION CONTAINING A SALT OF A METAL WHICH IS LOWER IN THE ELECTROMOTIVE FORCE SERIES OF ELEMENTS THAN ALUMINUM.
Claim 2
Independent Claim
167 words
THE METHOD OF PRODUCING AN ELECTRICAL RESISTANCE ON THE SURFACE OF TOUGHENED PLATE GLASS, WHICH CONSISTS OF APPLYING RESISTANCE METAL TO THE WHOLE OF THE SURFACE ON WHICH THE RESISTANCE IS TO BE PRODUCED, COVERING THE METAL WITH A RESIST TO PRODUCE ON THE METAL THE DESIRED PATTERN FOR THE RESISTANCE, CHEMICALLY REMOVING THE EXPOSED METAL BY SUBJECTING THE EXPOSED PARTS TO A CHEMICAL WHICH REMOVES THE METAL BUT WHICH HAS NO ACTION ON THE RESIST, CHARACTERISED IN THAT THE RESISTANCE METAL IS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND AN ALUMINUM ALLOY AND HAS A FUSING TEMPERATURE HIGHER THAN THAT OF THE GLASS, SAID METAL BEING APPLIED TO THE PLATE GLASS IN MOLTEN FORM TO FUSE THE SURFACE OF THE GLASS AND TO FORM A UNIFORM COATING THEREON WHICH IS SELF-BONDED TO THE GLASS, AND THE REMOVAL OF EXPOSED METAL IS EFFECTED BY A HYDROCHLORIC ACID SOLUTION CONTAINING A SALT OF A METAL WHICH IS LOWER IN THE ELECTROMOTIVE FORCE SERIES OF ELEMENTS THAN ALUMINUM.
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) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |