Appeal No. 1997-2265
Application No. 08/369,207
chlorinating a composition comprising chiefly
1,1,1-trichloroethane and a contaminating amount of
1,2-dichloroethane (see claim 2 on appeal and the Brief, pages
2-3). A copy of claim 2 on appeal is reproduced below:
2. A method comprising chlorinating a composition
comprising chiefly 1,1,1-trichloroethane and a
contaminating amount of 1,2-dichloroethane to
reduce the concentration of said 1,2-dichloroethane.
The following references have been cited by the examiner
as
evidence of obviousness:
Bursack et al. (Bursack) 3,658,657 Apr. 25,
1972
Gordon et al. (Gordon) 3,919,337 Nov. 11,1
1975
Claim 2 stands rejected under 35 U.S.C. § 103 as
unpatentable over Bursack in view of Gordon (Answer, page 3).
We reverse this rejection essentially for the reasons set
forth on pages 3-7 of the Brief. We add the following
comments primarily for emphasis.
OPINION
The examiner states that Bursack discloses a process for
1The examiner has incorrectly listed and discussed this
reference as “Gorden” in the Answer (e.g., Answer, pages 2 and
3).
3
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