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:
Mar. 03, 2009
Filed:
Dec. 01, 2005
Paul T. Buchheit, Mountain View, CA (US);
Nahush Mahajan, Sunnyvale, CA (US);
Keith J. Coleman, Mountain View, CA (US);
Paul T. Buchheit, Mountain View, CA (US);
Nahush Mahajan, Sunnyvale, CA (US);
Keith J. Coleman, Mountain View, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
The invention detects a full browser cache using multiple requests for the same page from a known URL. A request to the URL returns a page with a randomly or pseudo-randomly generated number. A request and then a re-request is made for the same page. If the cache is operating normally, the page for the re-request will be obtained from the browser cache and the number in the first request response will match the number from the re-request response. If the cache is not properly storing pages, the page will be fetched from the URL and contain a different randomly generated number, and therefore, the number in the two responses will not match. The user is notified and may be pointed to information explaining how to empty the cache.