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. 11, 1978
Filed:
Nov. 15, 1976
Applicant:
Inventors:
Kenneth Cooper, Suffolk, GB;
Ian Stanley Groves, Suffolk, GB;
Peter Alexander Leigh, Suffolk, GB;
Neil McIntyre, Suffolk, GB;
Sydney O'Hara, Suffolk, GB;
John Donald Speight, Suffolk, GB;
Assignee:
The Post Office, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
29578 ; 29580 ; 29589 ; 29590 ; 148-15 ; 156645 ; 156648 ; 204 15 ; 204 / ; 2041 / ; 357 13 ; 357 71 ; 357 81 ; 427 43 ; 427 82 ; 427 84 ; 427 89 ;
Abstract
The invention relates to the fabrication of IMPATT diodes. The invention discloses a specific sequence of steps and enables diodes to be mass produced without technological variations.