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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
06/21/1983
Application #:
06285115
Filing Dt:
07/22/1981
Inventors:
WERNER SCHMITT, ROBERT PURRMANN, PETER JOCHUM, HEINZ-JOACHIM HUBNER
Title:
USE OF GRANULATES OF SILICIC ACID AS FILLERS IN DENTAL MATERIALS
Assignment: 1
Reel/Frame:
004102/0266Recorded: 03/09/1983Pages: 1
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
08/05/1981
Exec Dt:
08/13/1981
Exec Dt:
08/05/1981
Exec Dt:
08/06/1981
Assignee:
SEEFELD/OBB.,, GERMANY 8031
Correspondent:
RONALD L. GRUDZIECKI
BURNS, DOANE, SWECKER & MATHIS
THE GEORGE MASON BLDG.
WASHINGTON & PRINCE STS.
ALEXANDRIA, VA 22313
Assignment: 2
Reel/Frame:
004808/0003Recorded: 12/01/1987Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
10/19/1987
Assignee:
SEEFELD, GERMANY
Correspondent:
BURNS, DOANE, SWECKER & MATHIS
GEORGE MASON BUILDING
WASHINGTON & PRINCE STREETS
P.O. BOX 1404
ALEXANDRIA, VA. 22313-1404

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