DETAILED ACTION
Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Claim Rejections - 35 USC § 103
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
Claims 1-5 are rejected under 35 U.S.C. 103 as being unpatentable over Ghaicha (CA 2162411).
Regarding claim 1, Ghaicha discloses an emulsion explosive including an aqueous oxidizer phase that includes ammonium nitrate, sodium nitrate, calcium nitrate, water, and ethylene diamine dinitrate (pg. 11, lines 5-28). The aqueous oxidizer phase is from 60-97 % (pg. 11, lines 28-32). The composition includes an emulsifier such as PIBSA (ex. 1) at up to 5% (pg. 10, lines 10-25), fuel oil such as paraffin oil from 3-30 % (pg. 12, lines 1-15), and microspheres that are copolymers of vinylidene chloride and acrylonitrile (pg. 14, 5-14). Table 1 indicates that the droplet size in the emulsion is less than 2 micron (pg. 19). The claimed amount of microspheres in not disclosed.
It would have been obvious to one having ordinary skill in the art at the time the invention was made to vary the parameters of the emulsion such as amounts to achieve a desired result. It is well-settled that optimizing a result effective variable is well within the expected ability of a person of ordinary skill in the subject art. In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980), In re Aller, 220 F.2d 454, 105 USPQ 233 (CCPA 1955). Ghaicha identifies that microspheres as a sensitizing additive and one of skill in the art would be able to optimize the amount of such an additive to achieve the desired result of sensitizing the emulsion explosive. The detonation velocity is an inherent property of this composition since the same components are used. As to limitations which are considered to be inherent in a reference, note the case law of In re Ludke, 169 USPQ 563; In re Swinehart, 169 USPQ 226, In re Fitzgerald, 205 USPQ 594; In re Best et al, 195 USPQ 430; and In re Brown, 173 USPQ 685, 688. Further the detonation velocity is a statement of intended use in a claim that is drawn to a composition. A recitation of the intended use of the claimed invention must result in a structural difference between the claimed invention and the prior art in order to patentably distinguish the claimed invention from the prior art. If the prior art structure is capable of performing the intended use, then it meets the claim.
Regarding claim 2, Ghaicha does not indicate the amount of ethylene diamine dinitrate as the portion of the aqueous oxidizer phase. However, Ghaicha identifies ethylene diamine dinitrate as a nitrogen contributing additive and one of skill in the art would be able to optimize the amount of such an additive to achieve the desired result of increasing the nitrogen in the emulsion explosive. It is well-settled that optimizing a result effective variable is well within the expected ability of a person of ordinary skill in the subject art. In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980), In re Aller, 220 F.2d 454, 105 USPQ 233 (CCPA 1955).
Claim Rejections - 35 USC § 112
The following is a quotation of 35 U.S.C. 112(b):
(b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention.
The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph:
The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.
Claim 5 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention.
The term “light oil” is a relative term which renders the claim indefinite. The term “light oil” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention.
Response to Arguments
Applicant's arguments have been fully considered but they are not persuasive. Applicant argues the detonation velocity. A recitation of the intended use of the claimed invention must result in a structural difference between the claimed invention and the prior art in order to patentably distinguish the claimed invention from the prior art. If the prior art structure is capable of performing the intended use, then it meets the claim. It is unclear why Applicant indicates that Ghaicha does not disclose the size at less than 2 micron. This size is clearly shown in the table from the prior art. There is no requirement that this size be labeled as essential. The fact that the inventor has recognized another advantage which would flow naturally from following the suggestion of the prior art cannot be the basis for patentability when the differences would otherwise be obvious. See Ex parte Obiaya, 227 USPQ 58, 60 (Bd. Pat. App. & Inter. 1985).
The 112 rejection is maintained. Applicant has not submitted any evidence that one of ordinary skill would know what oils would meet this limitation.
Conclusion
Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a).
A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action.
Any inquiry concerning this communication or earlier communications from the examiner should be directed to AILEEN BAKER FELTON whose telephone number is (571)272-6875. The examiner can normally be reached Monday 9-5:30, Thursday 11-3, Friday 9-5:30.
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/AILEEN B FELTON/Primary Examiner, Art Unit 1734