Prosecution Insights
Last updated: May 29, 2026
Application No. 18/521,699

SEPARABLE HEATSINK DESIGN

Non-Final OA §102§103
Filed
Nov 28, 2023
Examiner
RUBY, TRAVIS C
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
DELL PRODUCTS, L.P.
OA Round
1 (Non-Final)
53%
Grant Probability
Moderate
1-2
OA Rounds
1y 2m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allowance Rate
434 granted / 818 resolved
-16.9% vs TC avg
Strong +28% interview lift
Without
With
+28.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
35 currently pending
Career history
865
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
84.7%
+44.7% vs TC avg
§102
12.3%
-27.7% vs TC avg
§112
1.4%
-38.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 818 resolved cases

Office Action

§102 §103
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 . Election/Restrictions Applicant’s election without traverse of Species A (Figures 6-9) in the reply filed on 2/25/2026 is acknowledged. Status of Claims The status of the claims as filed in the submission dated 2/25/2026 are as follows: Claims 1-20 are pending; Claims 1-20 are being examined. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. Currently, no claim limitations invoke 112(f). Claim Objections Claims 6 and 14 are objected to because of the following informalities: Claims 6 and 14 recite “phsycial communciation”, which appears to be a typo for “physical communication”. Appropriate correction is required. Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they do not include the following reference sign(s) mentioned in the description: Paragraph 18 recites “processor 330 of FIGs. 3 and 4”, however no “330” is labeled in Figures 3 or 4. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. The drawings are objected to as failing to comply with 37 CFR 1.84(p)(4) because reference character “122” has been used to designate both “extension section” and “fins” (see paragraphs 17-18). Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. The following title is suggested: “Hinged Heatsink with Latch”. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: 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. Claims 1, 2, 7-10, and 14-16 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Lu (US2019/0069429A1). Re Claim 1. Lu teaches a heatsink (10) (Figures 1-3; The assembly is thermally conductive and thus is considered a heatsink) comprising: a main body (102) (Figures 1-3; Paragraphs 12-18); a hinge (1032, 1014 combine to form the hinge) (Figures 1-3; Paragraphs 12-18, 28-30); an arm portion (101) in physical communication with the main body and with the hinge, the arm portion including a movable portion (the arm is moveable) configured to transition between a closed position and an open position (Figures 1-3, wherein Figure 1 illustrates a closed position in which the end 1011 of the arm is connected to the hinge and the other end 1012 is contacting the main body. Figure 2 illustrates the arm in the open position; Paragraphs 12-18, 28-30); and a latch (104) in physical communication with the movable portion of the arm portion, the latch to transition between a locked position and an unlocked position, wherein the latch to securely hold the movable portion in the closed position (Figures 1-3; Paragraphs 12-18, 28-30). Re Claim 9. Lu teaches an information handling system comprising: a printed circuit board (20) including a plurality of connectors (Figures 1-3; Paragraphs 12-18, 28-30; Paragraphs 12 and 32 teach removing components from the circuit board 20, thus the circuit board forms connections between the circuit board and removable components. Thus, Lu teaches the circuit board includes a plurality of connectors); and a heatsink (10) (Figures 1-3; The assembly is thermally conductive and thus is considered a heatsink) in physical communication with the printed circuit board, the heatsink including (Figures 1-3; Paragraphs 12-18, 28-30); an arm portion (101) in physical communication with a main body (102) and with a hinge (1032, 1014 combine to form the hinge) (Figures 1-3; Paragraphs 12-18, 28-30), the arm portion including a movable portion (the arm is moveable) configured to transition between a closed position and an open position (Figures 1-3, wherein Figure 1 illustrates a closed position in which the end 1011 of the arm is connected to the hinge and the other end 1012 is contacting the main body. Figure 2 illustrates the arm in the open position; Paragraphs 12-18, 28-30); and a latch (104) in physical communication with the movable portion of the arm portion, the latch to transition between a locked position and an unlocked position, wherein the latch to securely hold the movable portion in the closed position (Figures 1-3; Paragraphs 12-18, 28-30). Re Claims 2 & 10. Lu teaches a static upper portion (top surface of 102) in physical communication with in the main body and with the hinge, wherein the static upper portion is coupled to the movable portion via the hinge (Figures 1-3; Paragraphs 12-18, 28-30). Re Claims 7 & 15. Lu teaches the movable portion transitions from the closed position to the open position when the latch is in the unlocked position (Figures 1-3; Paragraphs 12-18, 28-30). Re Claims 8 & 16. Lu teaches in response to a force being exerted on the movable portion, the movable portion rotates around the hinge (Figures 1-3; Paragraphs 12-18, 28-30). Re Claim 14. Lu teaches the movable portion is not in physical communication with the static lower portion when the movable portion is in the open position, and the connectors are visible when the movable portion is in the open position (Figures 1-3; Paragraphs 12-18, 28-30). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 17-18 are rejected under 35 U.S.C. 103 as being unpatentable over Lu (US2019/0069429A1). Re Claim 17. Lu teaches an information handling system comprising: a printed circuit board (20) including a plurality of connectors (Figures 1-3; Paragraphs 12-18, 28-30; Paragraphs 12 and 32 teach removing components from the circuit board 20, thus the circuit board forms connections between the circuit board and removable components. Thus, Lu teaches the circuit board includes a plurality of connectors); and a heatsink (10) (Figures 1-3; The assembly is thermally conductive and thus is considered a heatsink) in physical communication with the printed circuit board, the heatsink including (Figures 1-3; Paragraphs 12-18, 28-30); a main body (102) in physical communication with the processor; an arm portion (101) in physical communication with the main body and with a hinge (1032, 1014 combine to form the hinge) (Figures 1-3; Paragraphs 12-18, 28-30), the arm portion including a movable portion (the arm is moveable) configured to transition between a closed position and an open position (Figures 1-3, wherein Figure 1 illustrates a closed position in which the end 1011 of the arm is connected to the hinge and the other end 1012 is contacting the main body. Figure 2 illustrates the arm in the open position; Paragraphs 12-18, 28-30); and a latch (104) in physical communication with the movable portion of the arm portion, the latch to transition between a locked position and an unlocked position, wherein the latch to securely hold the movable portion in the closed position (Figures 1-3; Paragraphs 12-18, 28-30). Lu teaches a circuit board (20) but fails to specifically recite a processor. The examiner takes Official Notice of the well-known and ubiquitous use of processors on circuit boards. The use of processors on circuit boards is well-known and understood by those of ordinary skill in the art. Thus, it would have been obvious to include a processor on the circuit board of Lu as this is a well-known and understood design. Re Claim 18. Lu teaches a static upper portion (top surface of 102) in physical communication with in the main body and with the hinge, wherein the static upper portion is coupled to the movable portion via the hinge (Figures 1-3; Paragraphs 12-18, 28-30). Claims 3-6, 11-13, 19, and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Lu (US2019/0069429A1) in view of Wallner (US2022/0295674A1). Re Claims 3, 11, & 19. Lu teaches a static lower portion in physical communication with in the main body () but fails to specifically teach the static lower portion includes a plurality of heat pipes. However, Wallner teaches a heatsink (1) comprising a static lower portion (7) includes a plurality of heat pipes (generally denoted by 11, 12 in Figures 1-3) (Figures 1-3; Paragraphs 59, 83-86). Therefore, in view of Wallner's teaching, it would have been obvious to one of ordinary skill in the art at the time the invention was filed to add heat pipes to the static lower portion of Lu in order to better dissipate heat from the assembly, as is well-understood in the art. Re Claims 4, 12, & 20. Lu as modified by Wallner teach the movable portion includes a heat transfer material, wherein the heat transfer material is in physical communication with the heat pipes when the movable portion is in the closed position (Lu Figures 1-3, Paragraphs 12-18, 28-30; Wallner Figures 1-3, Paragraphs 59, 83-86). Re Claims 5 & 13. Lu as modified by Wallner teach the heat pipes are located within both the main body and the static lower portion (Lu Figures 1-3, Paragraphs 12-18, 28-30; Wallner Figures 1-3, Paragraphs 59, 83-86). Re Claim 6. Lu as modified by Wallner teach the movable portion is not in physical communication with the static lower portion when the movable portion is in the open position (Lu Figures 1-3, Paragraphs 12-18, 28-30; Wallner Figures 1-3, Paragraphs 59, 83-86). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See attached PTO-892 for other relevant prior art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TRAVIS RUBY whose telephone number is (571)270-5760. The examiner can normally be reached M-F: 9AM-5PM. 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, Jianying Atkisson can be reached at 571-270-7740. 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. /TRAVIS RUBY/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Nov 28, 2023
Application Filed
Apr 28, 2026
Non-Final Rejection mailed — §102, §103
May 18, 2026
Interview Requested
May 26, 2026
Examiner Interview Summary
May 26, 2026
Applicant Interview (Telephonic)

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Prosecution Projections

1-2
Expected OA Rounds
53%
Grant Probability
81%
With Interview (+28.3%)
3y 8m (~1y 2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 818 resolved cases by this examiner. Grant probability derived from career allowance rate.

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