Patent Assignment
Reel/Frame 039669/0274
Change of Name
Recorded: 2016-08-12
Pages: 3
Assignor
SENSORY ACQUISITION CO.
Executed: 2016-04-07
Assignee
DURRIDGE COMPANY INC.
524 BOSTON ROAD, BILLERICA, MASSACHUSETTS, 01821
Covered Properties
(2)
Method and Apparatus for Measuring Unattached Radon Progeny
Patent:
6,018,985 →
Application:
09/019,713 →
Method of Calibrating an Apparatus for Measuring Radon and/or Its Progeny in an Air Sample
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 28, 1999
From: LANE-SMITH, DEREK R.
To: DURRIDGE CO.
Reel/Frame 010344/0629 →
Assignment of Assignor's Interest
Mar 5, 2009
From: LANE-SMITH, DEREK R.
To: DURRIDGE COMPANY INC.
Reel/Frame 022422/0612 →
Assignment of Assignor's Interest
Aug 12, 2016
From: DURRIDGE COMPANY INC.
To: SENSORY ACQUISITION CO.
Reel/Frame 039413/0092 →