Patent Assignment
Reel/Frame 008135/0832
Assignment of Assignor's Interest
Recorded: 1996-09-16
Pages: 3
Assignor
CLAPHAM, WILLIAM STEPHEN
Executed: 1996-04-24
Assignee
HYDRA TOOLS INTERNATIONAL PC
HYDRA WORKS ECCLESFIELD, SHEFFIELD S30 3ZF, ENGLAND, UNITED KINGDOM
Covered Property
(1)
Water Supply System for a Mining Machine
Patent:
5,690,392 →
Application:
08/648,172 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jan 3, 2006
From: HYDRA TOOLS INTERNATIONAL PLC
To: HYDRA TOOLS INTERNATIONAL LIMITED
Reel/Frame 016958/0442 →
Assignment of Assignor's Interest
Jan 3, 2006
From: HYDRA TOOLS INTERNATIONAL LIMITED
To: HYDRA MINING TOOLS INTERNATIONAL LIMITED
Reel/Frame 016958/0524 →
Change of Name
Feb 16, 2012
From: HYDRA MINING TOOLS INTERNATIONAL LIMITED
To: ESCO HYDRA (UK) LIMITED
Reel/Frame 027715/0267 →