Patent
   D336336
Priority
Jul 31 1990
Filed
Jan 23 1991
Issued
Jun 08 1993
Expiry
Jun 08 2007
Assg.orig
Entity
unknown
2
5
n/a
The ornamental design for a crystallization furnace for dental prostheses, as shown and described.

FIG. 1 is a front elevational view of a crystallization furnace for dental prostheses showing our new design with the central stage raised into position for heating a dental prothesis (not shown) mounted thereof;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front isometric view thereof; and,

FIG. 8 is a front isometric view thereof with the central stage shown in lowered position.

Watanabe, Kazuhiro, Takahashi, Manabu, Shimizu, Toshio, Hakamatsuka, Yasuharu, Aihara, Mamoru

Patent Priority Assignee Title
D732094, Jul 20 2012 Ivoclar Vivadent AG Firing plate for a dental furnace
D837381, Dec 28 2016 The University of Hong Kong Dental wear simulator
Patent Priority Assignee Title
184839,
202317,
227368,
D246255, Nov 12 1976 Pelton & Crane Company Dental console
D283046, Apr 22 1983 Minnesota Mining and Manufacturing Company Dental furnace
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 23 1991Olympus Optical Company, Ltd.(assignment on the face of the patent)
Jan 23 1991Denken Co., Ltd.(assignment on the face of the patent)
Feb 08 1991HAKAMATSUKA, YASUHARUOLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0056310505 pdf
Feb 08 1991WATANABE, KAZUHIROOLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0056310505 pdf
Feb 08 1991AIHARA, MAMORUOLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0056310505 pdf
Feb 08 1991TAKAHASHI, MANABUOLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0056310505 pdf
Feb 08 1991SHIMIZU, TOSHIOOLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPANASSIGNMENT OF ASSIGNORS INTEREST 0056310505 pdf
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