US PATENT SUBCLASS 427 / 383.7
.~.~.~.~ Metal base

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


427 /   HD   COATING PROCESSES

331  DF  WITH POST-TREATMENT OF COATING OR COATING MATERIAL {14}
372.2  DF  .~ Heating or drying (e.g., polymerizing, vulcanizing, curing, etc.) {8}
383.1  DF  .~.~ Metal coating {1}
383.3  DF  .~.~.~ Inorganic base {2}
383.7.~.~.~.~ Metal base

DEFINITION

Classification: 427/383.7

Metal base:

(under subclass 383.3) Processes wherein the base contains metal in elemental form.

SEE OR SEARCH CLASS

148, Metal Treatment, appropriate subclasses for processes of heat treating a metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical property of metal combined with a coating operation. Since a diffusion may be involved in a coating operation involving metal and diffusion involves the microstructure of metal, per se, coating operations (i.e., other than reactive coating operations) go as original in Class 427 if the specified diffusion occurs during the coating step. However, a heat treatment step of the solid metal, independent of the coating step which causes diffusion to affect the micro structure of the metal goes as original to Class 148.