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:
Dec. 08, 2020
Filed:
Nov. 28, 2018
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Ray David Whitmer, Peasant Grove, UT (US);
Ajit Kumar Verma, Riverton, UT (US);
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
In one example, a method includes receiving a most recent backup version of client data, marking the most recent backup version to indicate that the most recent backup version has no expiration time, determining a currency span of an earlier backup version that is the backup version whose creation time is next most recent after a creation time of the most recent backup version, identifying all curtains in the currency span, each of the curtains being associated with a respective rule concerning a life of the earlier backup version, applying each of the rules to the earlier backup version, and whichever rule whose application results in the latest expiration time for the earlier backup version is the controlling rule, and assigning an expiration time to the earlier backup version according to the controlling rule.