Patent US2559969A successfully refreshed from Google Patents.
US2559969A
Expired / Lapsed
US
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Method of applying a masking composition to a glass base
Assignee: PPG Industries Inc
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Filing: 1950-02-16
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Granted: 1951-07-10
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Expires: 1970-02-16
Abstract
No abstract record available.
Inventors
- 👤 Douglas H Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:22
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/253; C03C23/00; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2217/229; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF PROVIDING A GLASS BASE WITH A LOCALIZED ELECTROCONDUCTIVE COATING WHICH COMPROMISES APPLYING TO A PORTION OF THE SURFACE OF THE BASE A COATING OF A TEMPERATURE RESISTANT, REMOVABLE, PULVERANT MASKING COMPOSITION OF FELDSPAR IN A VOLATILE LIQUID MEDIUM, LEAVING OTHER SURFACES OF THE BASE UNCOATED, HEATING THE COATED BASE TO A TEMPERATURE OF THE ORDER OT 1000 TO 1200* F., APPLYING STANNIC CHLORIDE TO THE SURFACE OF THE HEATED BASE WHEREBY AN ELECTROCONDUCTIVE COATING IS DEPOSITED UPON THE EXPOSED SURFACE OF THE GLASS, COOLING TO ROOM TEMPERATURE, AND REMOVING THE MASKING COATING FROM THE BASE BY WASHING WITH WATER.
Claim 2
Independent Claim
102 words
A METHOD OF PROVIDING A GLASS BASE WITH A LOCALIZED ELECTROCONDUCTIVE COATING WHICH COMPROMISES APPLYING TO A PORTION OF THE SURFACE OF THE BASE A COATING OF A TEMPERATURE RESISTANT, REMOVABLE, PULVERANT MASKING COMPOSITION OF FELDSPAR IN A VOLATILE LIQUID MEDIUM, LEAVING OTHER SURFACES OF THE BASE UNCOATED, HEATING THE COATED BASE TO A TEMPERATURE OF THE ORDER OT 1000 TO 1200* F., APPLYING STANNIC CHLORIDE TO THE SURFACE OF THE HEATED BASE WHEREBY AN ELECTROCONDUCTIVE COATING IS DEPOSITED UPON THE EXPOSED SURFACE OF THE GLASS, COOLING TO ROOM TEMPERATURE, AND REMOVING THE MASKING COATING FROM THE BASE BY WASHING WITH WATER.
References Cited (Backward Citations)
US1698302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |