US3690932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing mixed layers from inorganic and organic substances on a substrate
Assignee: Schott AG
•
Filing: 1969-11-14
•
Granted: 1972-09-12
•
Expires: 1989-11-14
Abstract
Abstract MIXED LAYERS OF INORGANIC AND ORGANIC SUBSTANCES ARE PRODUCED BY VAPORIZATION OF THESE SUBSTANCES IN A HIGH VACUUM CHAMBER AND PRECIPITATING THESE VAPORIZED SUBSTANCES ON A SUBSTRATE, SUCH AS A PLATE OF SYNTHETIC MATERIAL OR CHEMICALLY SENSITIVE OPTICAL GLASS. THE MIXED LAYER SO FORMED SERVES AS A DURABLE COATING PROTECTING THE SUBSTRATE EFFECTIVELY AGAINST DETRIMENTAL CHEMICAL AND MECHANICAL INFLUENCES.
Inventors
- 👤 Walter Geffcken
- 👤 Volker Paquet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:45
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/60; C; C03; C03C; C03C17/00; C03C17/006; C03C17/008; C03C17/009; C08; C08J; C08J7/00; C08J7/04; C08J7/043; C08J7/06; C23; C23C; C23C14/00; C23C14/06; C23C14/12; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |