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:
May. 21, 2019
Filed:
Jan. 05, 2017
Dropbox, Inc., San Francisco, CA (US);
James Cowling, San Francisco, CA (US);
Venkata Harish Mallipeddi, IV, San Francisco, CA (US);
Dropbox, Inc., San Francisco, CA (US);
Abstract
A data storage system includes multiple storage zones that store replicated copies of data items. Upon receiving a delete operation at a particular time to delete a data item, the system computes a maximum last update time based on the particular time and a minimum data item lifetime. Based on determining that a copy of the data item is stored in the data storage zone, the system then determines a last update time of the data item. In addition, based on determining that the last update time is less than the first maximum last update time, the system deletes the copy of the data item from the data storage zone.