Prosecution Insights
Last updated: April 19, 2026
Application No. 18/805,258

SYSTEMS AND METHODS FOR HVAC OUTDOOR UNIT WITH GRILL FORMING A SUPPORT STRUCTURE

Non-Final OA §102§103§112
Filed
Aug 14, 2024
Examiner
HINCAPIE SERNA, GUSTAVO A
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Rheem Manufacturing Company
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
3y 3m
To Grant
85%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allow Rate
239 granted / 405 resolved
-11.0% vs TC avg
Strong +26% interview lift
Without
With
+26.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
38 currently pending
Career history
443
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
47.1%
+7.1% vs TC avg
§102
27.0%
-13.0% vs TC avg
§112
25.0%
-15.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 405 resolved cases

Office Action

§102 §103 §112
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 . Specification The disclosure is objected to because of the following informalities: In paragraph 0018, line 4, “outdoor unit 210” should read –outdoor unit 212--. In paragraph 0020, line 5, “housing 212” should read –housing 202--. In paragraph 0027, line 5, “support structure 206” should read –support structure 220--. In paragraph 0029, line 6, “vertical struts 226” and “horizontal struts 224” should read –vertical struts 224-- and –horizontal struts 226--, respectively. In paragraph 0034, lines 3 and 4, “corner 452” should read –corner 454--. In paragraph 0035, lines 5-6, “eyelet 436” should read –eyelet 430--. In paragraph 0040, line 4, “pre-bent support structure 539” should read –pre-bent support structure 538--. In paragraph 0041, line 3, “bend line 549” should read –bend line 539--. Appropriate correction is required. 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 9 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. Regarding claim 9, it is unclear if the “an expansion valve” of line 1 is the same as the “an expansion valve” of lines 3-4 of claim 1. For the purpose of this examination, the claim has been interpreted to mean, in line 1: --the expansion valve--. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-7, 9, 11-17 and 19 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Pisaturo, III (US 2019/0063783, herein “Pisaturo”). Regarding claim 1, Pisaturo discloses: a system (100) (figs. 1-5B and 9B) [par. 0030-0031] comprising: a first heat exchanger (“coil” of par. 0036) configured to receive a fluid (“refrigerant” of par. 0033); a second heat exchanger (112) in fluid communication with the first heat exchanger (“coil” of par. 0036) via an expansion valve (110) and configured to receive the fluid (“refrigerant” of par. 0032-0033) (fig. 1); a compressor (114) in fluid communication with the first heat exchanger (108) and the second heat exchanger (112) (fig. 1) [par. 0032]; a fan configured to induce an airflow over the first heat exchanger (108) (fig. 1) [par. 0036]; a housing (116) configured to house the first heat exchanger (“coil” of par. 0036), the fan, and the compressor (114) within the housing (116) (fig. 1), the housing (116) having an opening (118) adjacent to the first heat exchanger (“coil” of par. 0036) (figs. 1-2) [par. 0037]; and a grill (120) sized and configured to cover the opening (118) [par. 0037] and having a first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) in a first direction (vertical direction) and a second set of parallel struts (136) in a second direction (horizontal direction) perpendicular to the first direction (vertical direction), the first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) and the second set of parallel struts (136) oriented along a first plane (seen in figs. 2-3A), wherein a first (138, figs. 1-5B; 238, fig. 9B) and second (138, figs. 1-5B; 238, fig. 9B) strut of the first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) are adjacent and connected at a first end of the first strut and a second end of the second strut via a support structure (see annotated fig. 3A-PISATURO, below), the support structure oriented in third direction perpendicular to the first plane (see annotated fig. 3A-PISATURO, below). PNG media_image1.png 840 476 media_image1.png Greyscale MPEP 2114 II clearly states “Apparatus claims cover what a device is, not what a device does" and “A claim containing a ‘recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus’ if the prior art apparatus teaches all the structural limitations of the claim.” Because Claim 1 fails to further limit the apparatus in terms of structure, but rather only recite further functional limitations, regarding the “the support structure configured to receive and support a maintenance device” limitation, the invention as taught by Pisaturo is deemed fully capable of performing such function. Regarding claim 2, Pisaturo discloses: the support structure being rectangular shaped having four corners (see annotated fig. 3A-PISATURO, page 4). Regarding claim 3, the recitation "the support structure being configured to be bent to transition from an initial position orientated along the first plane to a final position oriented in the third direction" is considered to be a product by process limitation (emphasis added). MPEP 2113 clearly states "Even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process." In this instance, the product taught by Pisaturo is the same as or makes the product claimed obvious, meeting this limitation of the claim. Regarding claim 4, Pisaturo discloses: the support structure being a tubular structure (see annotated fig. 3A-PISATURO, page 4). MPEP 2114 II clearly states “Apparatus claims cover what a device is, not what a device does" and “A claim containing a ‘recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus’ if the prior art apparatus teaches all the structural limitations of the claim.” Because Claim 4 fails to further limit the apparatus in terms of structure, but rather only recite further functional limitations, regarding the “the support structure is configured to receive a hook of the maintenance device” limitation, the invention as taught by Pisaturo can be configured to receive a hook of the maintenance device. Regarding claim 5, it is old and known in the art that air conditioning systems, like Pisaturo’s system 100, required regular maintenance inspections using manifold gauges. I would have been obvious to one of skill in the art, before the effective filing date of the claimed invention, to incorporate or use a refrigerant manifold gauge system when periodic maintenances of the systems are required. Regarding claim 6, MPEP 2114 II clearly states “Apparatus claims cover what a device is, not what a device does" and “A claim containing a ‘recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus’ if the prior art apparatus teaches all the structural limitations of the claim.” Because Claim 6 fails to further limit the apparatus in terms of structure, but rather only recite further functional limitations, regarding the “the support structure being configured to support the maintenance device without deformation of the support structure and without causing deformation of the grill” limitation, the support structure as taught by Pisaturo can be configured to support the maintenance device without deformation of the support structure and without causing deformation of the grill. Regarding claim 7, Pisaturo discloses: one or more struts of the first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) comprising an eyelet (290b) for coupling the strut (138, figs. 1-5B; 238, fig. 9B) to the housing (116) [par. 0063]. Regarding claim 9, Pisaturo discloses: the expansion valve (110) in fluid communication with the first heat exchanger (108) and the second heat exchanger (112) [par. 0032-0033], wherein the system (100) is a heat pump or air conditioning system (fig. 1) [par. 0002]. Regarding claim 11, Pisaturo discloses: an outdoor unit (108) of a heating, ventilation, and air conditioning (HVAC) system (100) (figs. 1-5B and 9B) [par. 0031-0032], the outdoor unit (108) comprising: a first heat exchanger (“coil” of par. 0036) configured to receive a fluid (“refrigerant” of par. 0033); a compressor (114) configured to circulate a fluid through the first heat exchanger (“coil” of par. 0036) [par. 0032]; a fan configured to induce an airflow over the first heat exchanger (“coil” of par. 0036) (fig. 1) [par. 0036]; a housing (116) configured to house the first heat exchanger (“coil” of par. 0036), the fan, and the compressor (114) within the housing (116) (fig. 1), the housing (116) having an opening (118) adjacent to the first heat exchanger (“coil” of par. 0036) (figs. 1-2) [par. 0037]; and a grill (120) sized and configured to cover the opening (118) [par. 0037] and having a first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) in a first direction (vertical direction) and a second set of parallel struts (136) in a second direction (horizontal direction) perpendicular to the first direction (vertical direction), the first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) and the second set of parallel struts (136) oriented along a first plane (figs. 2-3A), wherein a first (138, figs. 1-5B; 238, fig. 9B) and second (138, figs. 1-5B; 238, fig. 9B) strut of the first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) are adjacent and connected at a first end of the first strut and a second end of the second strut via a support structure (see annotated fig. 3A-PISATURO, page 4), the support structure oriented in third direction perpendicular to the first plane (see annotated fig. 3A-PISATURO, page 4). MPEP 2114 II clearly states “Apparatus claims cover what a device is, not what a device does" and “A claim containing a ‘recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus’ if the prior art apparatus teaches all the structural limitations of the claim.” Because Claim 1 fails to further limit the apparatus in terms of structure, but rather only recite further functional limitations, regarding the “the support structure configured to receive and support a maintenance device” limitation, the invention as taught by Pisaturo is deemed fully capable of performing such function. Regarding claim 12, Pisaturo discloses: the support structure being rectangular shaped having four corners (see annotated fig. 3A-PISATURO, page 4). Regarding claim 13, the recitation "the support structure being configured to be bent to transition from an initial position orientated along the first plane to a final position oriented in the third direction" is considered to be a product by process limitation (emphasis added). MPEP 2113 clearly states "Even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process." In this instance, the product taught by Pisaturo is the same as or makes the product claimed obvious, meeting this limitation of the claim. Regarding claim 14, Pisaturo discloses: the support structure being a tubular structure (see annotated fig. 3A-PISATURO, page 4). MPEP 2114 II clearly states “Apparatus claims cover what a device is, not what a device does" and “A claim containing a ‘recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus’ if the prior art apparatus teaches all the structural limitations of the claim.” Because Claim 4 fails to further limit the apparatus in terms of structure, but rather only recite further functional limitations, regarding the “the support structure is configured to receive a hook of the maintenance device” limitation, the invention as taught by Pisaturo can be configured to receive a hook of the maintenance device. Regarding claim 15, it is old and known in the art that air conditioning systems, like Pisaturo’s system 100, required regular maintenance inspections using manifold gauges. I would have been obvious to one of skill in the art, before the effective filing date of the claimed invention, to incorporate or use a refrigerant manifold gauge system when periodic maintenances of the systems are required. Regarding claim 16, MPEP 2114 II clearly states “Apparatus claims cover what a device is, not what a device does" and “A claim containing a ‘recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus’ if the prior art apparatus teaches all the structural limitations of the claim.” Because Claim 6 fails to further limit the apparatus in terms of structure, but rather only recite further functional limitations, regarding the “the support structure being configured to support the maintenance device without deformation of the support structure and without causing deformation of the grill” limitation, the support structure as taught by Pisaturo can be configured to support the maintenance device without deformation of the support structure and without causing deformation of the grill. Regarding claim 17, Pisaturo discloses: one or more struts of the first set of parallel struts (138, figs. 1-5B; 238, fig. 9B) comprising an eyelet (290b) for coupling the strut (138, figs. 1-5B; 238, fig. 9B) to the housing (116) [par. 0063]. Regarding claim 19, Pisaturo discloses: the first heat exchanger (“coil” of par. 0036) being in fluid communication with a second heat exchanger (112) via an expansion valve (110) and the compressor (114) being in fluid communication with the second heat exchanger (112) (fig. 1) [par. 0032-0033]. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103: 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. Claim 8, 10, 18 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Pisaturo. Regarding claims 8 and 18, Pisaturo does not disclose: one or more struts of the second set of parallel struts comprising an eyelet for coupling the strut to the housing. However, Pisaturo alludes to the possibility of having the horizontal struts (136) abutting side wall (130) [par. 0056]. It would have been obvious to one of skill in the art, before the effective filing date of the claimed invention, to try – choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success - to have the horizontal struts (136) comprising an eyelet (just as vertical struts 238, fig. 9B). Refer to MPEP 2143 (I) (E). In this instance, securing the horizontal struts (136) to the housing (116) in addition to the vertical struts (238; fig. 9B) will further optimize structural rigidity of the grill and it would have been obvious to a person of skill in the art to try to secure the horizontal structs (136) to the housing (116) in addition to the vertical struts (138) to further optimize structural rigidity of the grill. Regarding claims 10 and 20, Pisaturo does not disclose: the support structure being triangular shaped having three corners. However, Applicant does not disclose any criticality to have the support structure shaped as claimed and acknowledges that the support structure may have any shape [PGPub par. 0026]. It would have been an obvious matter of design choice to have the support structure being triangular shaped having three corners since Applicant has not disclosed that having the support structure arranged in this specific manner solves any stated problem or is for any particular purpose, and it appears that the grill would perform equally well having the support structure arranged in other manners. Further, it has been held that changing the shape of an old device is a matter of design choice which involves only routine skill in the art. MPEP 2144.04, section IV, part A. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to GUSTAVO A HINCAPIE SERNA whose telephone number is (571)272-6018. The examiner can normally be reached 9am-5:30pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Len Tran can be reached at 571-272-1184. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /GUSTAVO A HINCAPIE SERNA/Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Aug 14, 2024
Application Filed
Feb 14, 2026
Non-Final Rejection — §102, §103, §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
59%
Grant Probability
85%
With Interview (+26.0%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 405 resolved cases by this examiner. Grant probability derived from career allow rate.

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