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:
Sep. 20, 2005
Filed:
Sep. 30, 2003
Applicant:
Bhagya Chandra Sutradhar, Wilmington, DE (US);
Inventor:
Bhagya Chandra Sutradhar, Wilmington, DE (US);
Assignee:
Invista North America S.A.R.L., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C051/00 ; C07C051/42 ; F26B003/00 ;
U.S. Cl.
CPC ...
Abstract
Process for drying moist, solid adipic acid using at least two drying stages in which moist solid adipic acid is progressively dried by contacting it in at least two successive stages with a nonreactive gas, the temperature of the first stage being lower than the temperature in any of the subsequent stages.