Patent Assignment
Reel/Frame 022422/0612
Assignment of Assignor's Interest
Recorded: 2009-03-05
Pages: 4
Assignor
LANE-SMITH, DEREK R.
Executed: 2009-03-05
Assignee
DURRIDGE COMPANY INC.
7 RAILROAD AVENUE, SUITE D, BEDFORD, MASSACHUSETTS, 01730
Covered Property
(1)
Method of Calibrating an Apparatus for Measuring Radon and/or Its Progeny in an Air Sample
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.