US4051094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conductive lacquer
Assignee: Reuter Maschinen et Al
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Filing: 1975-10-09
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Granted: 1977-09-27
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Expires: 1995-10-09
Abstract
Abstract An electrically conductive lacquer adapted for use in heating elements is prepared by dispersing electrically conductive particles in an aqueous plastic dispersion in an aqueous silicate solution. Sodium or potassium silicate and an acrylic resin may be used in making the dispersion. The electrically conductive particles may be carbon or particles having a noble metal surface.
Inventors
- 👤 Franz Gottfried Reuter
- 👤 Tankred Menzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:27
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B3/10; H05B3/12; H05B3/14; H05B3/146; H05B2203/00; H05B2203/011; H05B2203/013; H05B2203/017; H05B2203/026; H05B2203/032
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
38 words
An electrically conductive lacquer consisting essentially of silver-plated copper particles, acetylene soot particles, and a binder, the binder being an aqueous dispersion of a copolymer of butyl acrylate, vinyl acetate, and acrylic acid in an aqueous silicate solution.
Claim 2
Dependent Claim
38 words
An electrically conductive lacquer consisting essentially of silver-plated copper particles, acetylene soot particles, and a binder, the binder being an aqueous dispersion of a copolymer of butyl acrylate, vinyl acetate, and acrylic acid in an aqueous silicate solution.
Claim 3
Dependent Claim
21 words
Conductive lacquer according to claim 1, characterized by the fact that the silicate solution is a sodium or potassium silicate solution.
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |