Appeal No. 96-0456
Application No. 08/072,654
body tissue and securing the position of the trocar
positioning
device relative thereto, said thread means having a base, a
distal surface extending from said second housing to a thread
apex, and a proximal thread wall extending from the second
housing to said thread apex;
wherein a distal thread surface flank angle is defined by
the angle between a vertical line perpendicular to said base
extending through said thread apex and a line extending from
said distal thread based surface to said thread apex, and a
proximal end wall flank angles is defined by the angle between
a vertical line perpendicular to said base extending through
said thread apex and said proximal end wall;
wherein said flank angle of said distal thread surface is
greater than said flank angle of said proximal end wall, at a
ratio of about 6 to about 1 respectively;
wherein said distal thread surface has a radius of
curvature of about .07 to about .09 inches.
The references of record relied upon of evidence of
obviousness are:
Burdick (Burdick) 137,414 Apr. 1, 1873
Silberman (Silberman) 3,726,522 Apr. 10, 1973
Von Albertini (Von Albertini) 4,670,008 Jun. 2, 1987
Reich et al (Reich) 5,009,643 Apr. 23, 1991
Sherwood Medical (Sherwood) 232,600 Aug. 19, 1987
(European Patent)
THE REJECTION
Claims 12, 15 through 17, 21 and 24 through 27 stand
rejected under 35 U.S.C. § 103 as unpatentable over Von
Albertini in view of Burdick.
3
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007