US4251275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-viscosity, high-silver, paint
Assignee: VISTATECH Corp A CORP OF
•
Filing: 1979-06-18
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Granted: 1981-02-17
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Expires: 1999-06-18
Abstract
Abstract A silver paint having a maximum viscosity of 300 cps and containing particulate silver produced by thermal decomposition of a carboxylic acid salt of silver.
Inventors
- 👤 Robert J. Deffeyes
- 👤 Harris W. Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:32
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/042; H01G9/0425; C; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/51; C04B41/5116
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
In a silver paint, suitable for use in impregnation of porous bodies comprising a liquid vehicle and particulate silver; the improvement comprising at least 40% by weight of particulate silver having an average diameter of from 0.1 to 0.5 microns and formed by thermal decomposition of a carboxylic acid salt of silver, said paint having a maximum viscosity of about 300 cps.
Claim 2
Dependent Claim
62 words
In a silver paint, suitable for use in impregnation of porous bodies comprising a liquid vehicle and particulate silver; the improvement comprising at least 40% by weight of particulate silver having an average diameter of from 0.1 to 0.5 microns and formed by thermal decomposition of a carboxylic acid salt of silver, said paint having a maximum viscosity of about 300 cps.
Claim 3
Dependent Claim
18 words
A silver paint as defined in claim 1 having an average diameter of from 0.1 to 0.3 micron.
Claim 4
Dependent Claim
19 words
A silver paint as defined in claim 1 or 2 wherein said decomposition takes place in a liquid medium.
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) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |