Patent Assignment
Reel/Frame 045210/0438
PATENT SECURITY AGREEMENT SUPPLEMENT (REVOLVER)
Recorded: 2018-01-31
Received: 2018-01-31
Pages: 6
Assignor
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
Executed: 2016-10-18
Assignee
CITIBANK, N.A.
390 GREENWICH ST, 1ST FLOOR, NEW YORK, NY, 10014, UNITED STATES
Covered Applications
(3)
SYSTEMS AND METHODS FOR INDICATING A TEST TAKER STATUS WITH AN INTERACTIVE TEST TAKER ICON
App. No. 12/470,840
→
DYNAMIC CONTENT, POLLING, AND PROCTOR APPROVAL FOR ONLINE TEST TAKER ACCOMMODATIONS
App. No. 11/877,460
→
SYSTEMS AND METHODS OF DATA VISUALIZATION IN AN ONLINE PROCTORING INTERFACE
App. No. 11/853,608
→