US3123497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for depositing silicon dioxide dielectric coatings
Assignee: —
•
Filing: —
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Granted: 1964-03-03
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:53
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01B33/183; H; H01; H01B; H01B3/00; H01B3/02; H01B3/10; C01P; C01P2004/00; C01P2004/80; Y; Y10; Y10S; Y10S148/00; Y10S148/118; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
A METHOD FOR COATING A MOLYBDENUM SURFACE WITH SILICON DIOXIDE BY PYROLYTIC DEPOSITION COMPRISING THE STEPS OF PASSING A FIRST GAS CONSISTING ESSENTIALY OF A MIXTURE OF HYDROGEN AND ARGON OVER SILICON TETRABROMIDE AT THE RATE OF 100 MILLILITERS PER MINUTE IN ORDER TO PICKUP A PREDETERMINED AMOUNT OF SILICON TETRABROMIDE VAPORS, PASSING A SECOND CARRIER GAS CONSISTING ESSENTIALLY OF A MIXTURE OF HYDROGEN AND ARGON OVER A 55 PERCENT SOLUTION OF SULFURIC ACID IN ORDER TO PICKUP A PREDETERMINED AMOUNT OF WATER VAPOR, COMBINING SAID FIRST AND SECOND VAPOR CONTAINING CARRIER GASES SUCH THAT THE DREW POINT OF SAID COMBINED CARRIER GASES RANGES FROM ABOUT -62*C. TO -68*C. AND BLOWING SAID COMBINED VAPOR CONTAINING CARRIER GASES ONTO A HOT MOLYBDENUM SURFACE
References Cited (Backward Citations)
GB675341A
Cited
US2886414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |