US PATENT SUBCLASS 560 / 28
.~.~.~.~.~.~ Ortho fused

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

Internet Version by PATENTEC © 1999      Terms of Use


560 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
1  DF  .~ Carboxylic acid esters {14}
8  DF  .~.~ Aromatic acid moiety {9}
19  DF  .~.~.~ Nitrogen in acid moiety other than as nitroso or isocyanate (e.g., amino acid esters, etc.) {12}
24  DF  .~.~.~.~ Carbamic acid {6}
27  DF  .~.~.~.~.~ Plural rings in acid moiety {1}
28.~.~.~.~.~.~ Ortho fused

DEFINITION

Classification: 560/28

Ortho fused:

(under subclass 27) Compounds wherein at least two carbocyclic groups are joined through two ortho positioned carbon atoms.

(1) Note. This subclass contains, for example: [figure] [figure]