US2957787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering titanium dioxide films electrically conductive
Assignee: General Electric Co
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Filing: 1957-01-02
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Granted: 1960-10-25
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Expires: 1977-01-02
Abstract
No abstract record available.
Inventors
- 👤 Lewis R Koller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:44
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; H05B33/28; H01; H01B; H01B1/00; H01B1/06; H01B1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE METHOD OF RENDERING A FILM OF TITANIUM DIOXIDE CONDUCTING, WHICH METHOD COMPRISES, SUPPORTING A FILM CONSISTING OF TITANIUM DIOXIDE OUT OF CONTACT WITH ANY SOLID SUBSTANCE OTHER THAN THE SUPPORTING SUBSTRATE WITHIN A REACTION CHAMBER AT ELEVATED TEMPERATURE IN AN ATMOSPHERE OF A GAS SELECTED FROM THE GROUP CONSISTING OF DRY HYDROGEN AND DRY HYDROGEN SULFIDE.
Claim 2
Independent Claim
57 words
THE METHOD OF RENDERING A FILM OF TITANIUM DIOXIDE CONDUCTING, WHICH METHOD COMPRISES, SUPPORTING A FILM CONSISTING OF TITANIUM DIOXIDE OUT OF CONTACT WITH ANY SOLID SUBSTANCE OTHER THAN THE SUPPORTING SUBSTRATE WITHIN A REACTION CHAMBER AT ELEVATED TEMPERATURE IN AN ATMOSPHERE OF A GAS SELECTED FROM THE GROUP CONSISTING OF DRY HYDROGEN AND DRY HYDROGEN SULFIDE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |