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:
Jun. 30, 1987
Filed:
Mar. 21, 1986
Toyohiko Nishimura, Kobe, JP;
Hajime Hiratani, Sennan, JP;
Japan Chemical Research Co., Ltd., Kobe, JP;
Abstract
A tumor cytostatic-cytocidal factor is produced by disrupting platelets, extracting the disrupted platelets with an acidic aqueous solution or an acidic water-organic solvent mixture, and, after gel filtration, if desired, to separate a fraction having an estimated molecular weight of 10,000 to 20,000 and having tumor cell growth inhibiting activity, subjecting said extract or said fraction to chromatography to isolate a cytostatic fraction having a molecular weight of 10,000 to 20,000 and an isoelectric point of 9.0 to 10.0, giving a positive nihidrin reaction and being such that it is deactivated by trypsin but not deactivated by heating in physiological saline solution at 60.degree. C. for 30 minutes or contacting at room temperature with 0.2N hydrochloric acid for 60 minutes or 70% formic acid for 30 minutes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile