The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1981
Filed:
Jun. 30, 1980
Applicant:
Inventors:
Richard J Millard, Williamstown, MA (US);
Walter J Bernard, Williamstown, MA (US);
Alfred Whitman, Williamstown, MA (US);
Assignee:
Sprague Electric Company, North Adams, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
204 42 ; 204 / ;
Abstract
In a two-stage differential anodization of valve-metal pellets in which the second stage is carried out at a high voltage and with a different electrolyte than the first, underformed spots on the pellets are eliminated in the second stage by adding 0.01-1.0 wt. % of a nonionic surfactant to the second stage electrolyte.
Quick Actions:
Millard, Richard. (1981). Two-stage differential anodization process (U.S. Patent No. 4278513). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4278513
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile