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:
Oct. 26, 1976
Filed:
Mar. 24, 1975
Applicant:
Inventors:
Herbert J Adams, Westboro, MA (US);
Jon C Anderson, Wyckoff, NJ (US);
Murray R Blair, Jr, Sudbury, MA (US);
Robert L Di Rubio, Paxton, MA (US);
Bertil H Takman, Worcester, MA (US);
Assignee:
Astra Pharmaceutical Products, Inc., Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424324 ;
Abstract
Tertiary-alkylamino-lower acyl-xylidides have unusually long lasting local anaesthetic effect or high local anaesthetic activity while also having a satisfactory low level of tissue irritation and a satisfactory low acute toxicity. Combinations of such local anaesthetics with the biotoxins tetrodotoxin or saxitoxin are disclosed. Novel tertiary alkyl secondary amines, and methods for preparing such local anaesthetics and amines are also disclosed.