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. 20, 2005
Filed:
Mar. 21, 2002
Gerald Francis Mcbrearty, Austin, TX (US);
Johnny Meng-han Shieh, Austin, TX (US);
Vi Trieu Tran, Austin, TX (US);
Michael W. Wortman, Cedar Park, TX (US);
Gerald Francis McBrearty, Austin, TX (US);
Johnny Meng-Han Shieh, Austin, TX (US);
Vi Trieu Tran, Austin, TX (US);
Michael W. Wortman, Cedar Park, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for designating and deleting expired files includes a means for storing expiration dates along with file identification data maintained by the file system. An earliest expiration date is stored in data maintained by the file system pertaining to each directory. In this manner, a check of the directory data indicates whether one or more expired files exist in the directory. The system date is compared to the earliest expiration date for a directory, for example when a 'list contents of directory' command is received. If the earliest expiration date is earlier than the system date then a comparison is made with the files in the directory and individual files with expiration dates earlier than the current date are deleted. The earliest expiration date is then update to the correspond to the next earliest expiration date falling after the current date.