Patent
   D819810
Priority
Jul 25 2016
Filed
Jan 25 2017
Issued
Jun 05 2018
Expiry
Jun 05 2033
Assg.orig
Entity
unknown
13
20
n/a
The ornamental design for a retractor, as shown and described.

FIG. 1 is a front perspective view of a retractor showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a left side elevational view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a cross-sectional view thereof, taken along line 8-8 of FIG. 2; and,

FIG. 9 is a perspective view thereof, showing the retractor in use after being inserted into a chest or an abdomen from a small incision, the retractor being deformed in a ring shape in a body, so as to keep the opened part in the opened state.

The broken lines illustrate environmental structure and form no part of the claimed design.

Yamasaki, Haruhiko, Morishita, Yoshiro, Shibata, Toshihiko, Mitsuhashi, Katsunori

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Jan 25 2017OSAKA CITY UNIVERSITY(assignment on the face of the patent)
Jan 25 2017OZK CO., LTD.(assignment on the face of the patent)
Jan 25 2017SHINWA SYOJI CO., LTD.(assignment on the face of the patent)
Feb 01 2017MITSUHASHI, KATSUNORISHINWA SYOJI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017YAMASAKI, HARUHIKOSHINWA SYOJI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017SHIBATA, TOSHIHIKOSHINWA SYOJI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017MORISHITA, YOSHIROOZK CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017MITSUHASHI, KATSUNORIOZK CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017YAMASAKI, HARUHIKOOZK CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017SHIBATA, TOSHIHIKOOZK CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017MORISHITA, YOSHIROOSAKA CITY UNIVERSITYASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017MITSUHASHI, KATSUNORIOSAKA CITY UNIVERSITYASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017YAMASAKI, HARUHIKOOSAKA CITY UNIVERSITYASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017SHIBATA, TOSHIHIKOOSAKA CITY UNIVERSITYASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
Feb 01 2017MORISHITA, YOSHIROSHINWA SYOJI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0416870226 pdf
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