Patent Assignment
Reel/Frame 045210/0487
PATENT SECURITY AGREEMENT SUPPLEMENT (REVOLVER)
Recorded: 2018-01-31
Received: 2018-01-31
Pages: 5
Assignor
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
Executed: 2016-07-15
Assignee
CITIBANK, N.A.
390 GREENWICH ST, 1ST FLOOR, NEW YORK, NY, 10014, UNITED STATES