US3697467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersion of polycarboxylic acid resin with silica
Assignee: Sherwin Williams Co
•
Filing: 1969-11-03
•
Granted: 1972-10-10
•
Expires: 1989-11-03
Abstract
Abstract THERE ARE PROVIDED AN IMPROVED ELECTROCATING PROCESS, COMPOSITION AND ARTICLE CHARACTERIZED BY THE INCLUSION IN EACH OF A POLYCARBOXYLIC ACID RESIN AND A MINOR AMOUNT OF EXTREMELY FINELY DIVIDED SILICA. ELECTRODEPOSITION OF A DIELECTRIC COATING FROM A BATH INCLUDING AN ACIDIC POLYMER, A BASE, AND A MINOR AMOUNT OF SUCH SILICA ENABLE MORE NEARLY UNIFORM ELECTROCOATING AND WHEN CURED, AS BY THERMAL MEANS, YIELDS AN IMPROVED PRODUCT EXHIBITING HIGHER DIELECTRIC BREAKDOWN VOLTAGES ALONG EDGES AND OTHER CONTOURED SURFACES.
Inventors
- 👤 Joseph P Haughney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4484; C09D167/00
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |