US3617341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of depositing in situ a ceramic or glass film on the surfaces of a substrate
Assignee: AT&T Inc
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Filing: 1969-09-30
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Granted: 1971-11-02
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Expires: 1989-09-30
Abstract
Abstract An inorganic film in either the crystalline or vitreous state is formed in situ on a suitable substrate by the decomposition of metal and/or metalloidal resinates. A plurality of metallic and/or metalloidal resinates, which form inorganic oxides upon decomposition in air or an oxidizing atmosphere, are physically admixed to form a resinate mixture. The resinate mixture is applied to the substrate and the substrate is fired in air to a temperature sufficient to (1) decompose the resinate mixture to form the inorganic oxides and (2) combine the resultant inorganic oxides to form a film either in the crystalline or amorphous state on the surfaces of the substrate.
Inventors
- 👤 Gerald B Fefferman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:58
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/5025; C04B41/4505; C23; C23D; C23D5/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
23 words
The method as defined in claim 1 wherein said oxides combine to form an inorganic glass film on the surfaces of the substrate.
Claim 2
Dependent Claim
31 words
The method as defined in claim 2 wherein: said organic resinates consist of a lead resinate and a silicon resinate; and wherein, said glass film is a lead silicate glass film.
Claim 3
Dependent Claim
34 words
The method as defined in claim 2 wherein: said organic resinates consist of a lead resinate, a silicon resinate and a boron resinate; and wherein, said glass film is a lead borosilicate glass film.
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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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |