US2879184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering titanium dioxide films electrically conductive
Assignee: General Electric Co
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Filing: 1956-03-30
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Granted: 1959-03-24
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Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Henry D Coghill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:29
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/08; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H05B33/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE METHOD OF RENDERING A FILM OF TITANIUM DIOXIDE ELECTRICALLY CONDUCTIVE WHICH COMPRISES SUPPORTING A FILM OF TITANIUM DIOXIDE OUT OF CONTACT WITH ANY SUBSTANCE OTHER THAN A SUPPORTING SUBSTRATE, HEATING THE SUPPORTED FILM OF TITANIUM DIOXIDE FROM .1 TO 1 MICRON IN THICKNESS IN VACUO AT A TEMPERATURE OF 200*C. TO 700*C. FOR 5 TO 20 MINUTES.
Claim 2
Independent Claim
58 words
THE METHOD OF RENDERING A FILM OF TITANIUM DIOXIDE ELECTRICALLY CONDUCTIVE WHICH COMPRISES SUPPORTING A FILM OF TITANIUM DIOXIDE OUT OF CONTACT WITH ANY SUBSTANCE OTHER THAN A SUPPORTING SUBSTRATE, HEATING THE SUPPORTED FILM OF TITANIUM DIOXIDE FROM .1 TO 1 MICRON IN THICKNESS IN VACUO AT A TEMPERATURE OF 200*C. TO 700*C. FOR 5 TO 20 MINUTES.
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |