Patent US2922730A successfully refreshed from Google Patents.
US2922730A
Expired / Lapsed
US
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Method of forming thin films of barium titanate
Assignee: Individual
•
Filing: 1956-06-07
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Granted: 1960-01-26
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Expires: 1976-06-07
Abstract
No abstract record available.
Inventors
- 👤 Feldman Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:14
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/08; C23C14/088; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5025; C04B41/5041; C04B41/80; C04B41/81; C04B41/85; C04B41/87; C23C14/58; C23C14/5806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF FORMING A THIN FILM OF BARIUM TITANATE ON A REFRACTORY, OXIDATION-RESISTANT SUBSTRATE WHICH COMPRISES VAPORIZING EQUIVALENT AMOUNTS BY WEIGHT OF BARIUM OXIDE AND TITANIUM DIOXIDE UNDER A HIGH VACUUM IN THE PRESENCE OF THE SUBSTRATE AND WITH DEPOSITION OF VAPORIZED BARIUM OXIDE AND TITANIUM DIOXIDE ONTO THE SUBSTRATE AS A FILM AND THEREAFTER HEATING THE SUBSTRATE AND ACCOMPANYING FILM IN AIR AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 1000 TO 1500*C. FOR A PERIOD OF TIME SUFFICIENT TO FORM SUBSTANTIALLY PURE BARIUM TITANATE IN THE FILM.
Claim 2
Independent Claim
91 words
A METHOD OF FORMING A THIN FILM OF BARIUM TITANATE ON A REFRACTORY, OXIDATION-RESISTANT SUBSTRATE WHICH COMPRISES VAPORIZING EQUIVALENT AMOUNTS BY WEIGHT OF BARIUM OXIDE AND TITANIUM DIOXIDE UNDER A HIGH VACUUM IN THE PRESENCE OF THE SUBSTRATE AND WITH DEPOSITION OF VAPORIZED BARIUM OXIDE AND TITANIUM DIOXIDE ONTO THE SUBSTRATE AS A FILM AND THEREAFTER HEATING THE SUBSTRATE AND ACCOMPANYING FILM IN AIR AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 1000 TO 1500*C. FOR A PERIOD OF TIME SUFFICIENT TO FORM SUBSTANTIALLY PURE BARIUM TITANATE IN THE FILM.
References Cited (Backward Citations)
US422895A
Cited
US2438761A
Cited
US2695380A
Cited
FR1042265A
Cited
US2699522A
Cited
US2746888A
Cited
US2757309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |