Patent US3630873A successfully refreshed from Google Patents.
US3630873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sputtering of transparent conductive oxide films
Assignee: PPG Industries Inc
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Filing: 1969-12-05
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Granted: 1971-12-28
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Expires: 1989-12-05
Abstract
Abstract A TRANSPARENT CONDUCTIVE OXIDE FILM MAY BE CATHODE SPUTTERED ONTO GLASS OR THE LIKE MORE RAPIDLY WHEN THE GLASS IS RESTED UPON A WATER-COOLED METAL ANODE. IN PRODUCING FILMS OF GOOD CONDUCTIVITY, UNDER 50 OHMS PER UNIT SQUARE, USING SUCH AN ANODE, AN UNDESIRABLE PATTERNED COATING SOMETIMES DEVELOPS ONTHE GLASS. THE APPEARANCE IS UNSIGHTLY, AND THE PATTERN INDICATES A VARIATION IN THE ELECTRICAL PROPERTIES OF THE COATING. THIS INVENTION MINIMIZES AND EVEN PREVENTS THE PATTERN DEVELOPMENT BY PLACING A PIECE OF FIBER-GLASS CLOTH OR THE LIKE BETWEEN THE ANODE AND THE SAMPLE TO BE COATED.
Inventors
- 👤 Verl D Moore
- 👤 John D Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:26
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/50; C23C14/34; H; H01; H01B; H01B1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |