Patent · US Expired

Spiro compounds

US3950403A · kind A · utility

1Cited by
1References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 2, 1974
Grant dateApr 13, 1976
Priority date—
Expiry dateDec 2, 1994

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S8/917
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Compounds which contain a group bonded directly to an aromatic nucleus of the formula EQU --(CH.sub.2 --).sub.n --X 1. in which n is a positive integer having a value of at least 2 and X represents a removable substituent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.