US3268352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blooming of optical components with a complex alumino-silicate compound
Assignee: Thales Optronics Ltd
•
Filing: 1958-09-15
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Granted: 1966-08-23
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Expires: 1978-09-15
Abstract
No abstract record available.
Inventors
- 👤 Davy John Rupert
- 👤 Orr John Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:34
CPC Classifications
G; G02; G02B; G02B1/00; G02B1/10; G02B1/11; G02B1/113; C; C23; C23C; C23C14/00; C23C14/06; C23C14/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS FOR COATING OPTICAL COMPONENTS, INCLUDING THE STEP OF DEPOSITING THE COATING BY HEATING A MIXTURE OF ALUMINUM OXIDE WITH SILICON MONOXIDE UNDER VACUUM CONDITIONS AND EVAPORATING SAME, THE RESULTANT COATING BEING A COMPLEX COMPOUND COMPRISING AT LEAST ONE ALUMINO-SILICATE.
Claim 2
Dependent Claim
41 words
A PROCESS FOR COATING OPTICAL COMPONENTS, INCLUDING THE STEP OF DEPOSITING THE COATING BY HEATING A MIXTURE OF ALUMINUM OXIDE WITH SILICON MONOXIDE UNDER VACUUM CONDITIONS AND EVAPORATING SAME, THE RESULTANT COATING BEING A COMPLEX COMPOUND COMPRISING AT LEAST ONE ALUMINO-SILICATE.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |