Prosecution Insights
Last updated: April 19, 2026
Application No. 18/576,675

DUST BOX AND AUTOMATIC CLEANING APPARATUS

Non-Final OA §103
Filed
Jan 04, 2024
Examiner
HENSON, KATINA N
Art Unit
3723
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
BEIJING ROBOROCK INNOVATION TECHNOLOGY CO., LTD.
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
3y 0m
To Grant
86%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allow Rate
344 granted / 631 resolved
-15.5% vs TC avg
Strong +32% interview lift
Without
With
+31.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
77 currently pending
Career history
708
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
55.5%
+15.5% vs TC avg
§102
23.9%
-16.1% vs TC avg
§112
19.3%
-20.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 631 resolved cases

Office Action

§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 . 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 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. Status of Claims Claims 1 – 20 are pending. Information Disclosure Statement The information disclosure statement (IDS) submitted on 01/04/2024, 12/24/2024 and 09/16/2024 were filed before the first office action. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. 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. 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. Claims 1 – 6, 8 – 17 and 19 – 20 are rejected under 35 U.S.C. 103 as being unpatentable over Ping (CN109106289 A) as cited by Applicant – see machine translation. Regarding Independent Claim 1, Ping teaches a dust box (Fig. 7), comprising: a dust box body (box body, 1), comprising a bottom wall (Annotated Fig. 7) and at least one side wall (Annotated Fig. 7) disposed around an edge of the bottom wall (Annotated Fig. 7), wherein the side wall (Annotated Fig. 7) extends from the bottom wall (Annotated Fig. 7) in a direction away from the bottom wall (Annotated Fig. 7), and the bottom wall (Annotated Fig. 7) and the side wall (Annotated Fig. 7) enclose an accommodation space (117/121); and a dust box lid (cover, 4), pivotally connected to a wall (Annotated Fig. 7) of the dust box body (1) and configured to cover a top of the accommodation space (117/121), wherein a second side wall (Annotated Fig. 7) of the dust box (1) has an elastic sheet assembly (spring, 3) pivotally and elastically connected to the second side wall (Annotated Fig. 7),; and the dust box lid (4) has a protruding portion (bone portion, 41; Fig. 10) configured to cooperate with the elastic sheet assembly (3) in a process in which the dust box lid (4) covers the top of the accommodation space (Paragraph [0064]). PNG media_image1.png 619 738 media_image1.png Greyscale Although Ping teaches a dust box lid (cover, 4), pivotally connected (Fig. 7), the reference does not explicitly teach a dust box lid pivotally connected to a first side wall. it would have been obvious to one having ordinary skill in th art before the effective filing date of the claimed invention to modify the dust box of Ping to teach a dust box lid pivotally connected to a first side wall, as claimed, since it has been held that rearranging parts of an invention involves only routine skill in the art (MPEP 2144.04). Ping does not explicitly teach the elastic sheet assembly is rotatable relative to the second side wall about a first axis extending in a first direction, the first direction being parallel to the bottom wall, however, it would have been obvious to one having ordinary skill in th art before the effective filing date of the claimed invention to modify the dust box of Ping to further explicitly teach the elastic sheet assembly is rotatable relative to the second side wall about a first axis extending in a first direction, the first direction being parallel to the bottom wall, as claimed, since it has been held that rearranging parts of an invention involves only routine skill in the art (MPEP 2144.04). Regarding Claim 2, Ping teaches the dust box (Fig. 7) wherein the elastic sheet assembly (spring, 3) comprises: a rotating member (contact part, 31), which is rotatable relative to the second side wall about the first axis between a first position and a second position (positions before being squeezed and position after being squeezed); and an elastic member, which causes the rotating member to be biased at the first position (Paragraph [0067]). Regarding Claim 3, Ping teaches the dust box (Fig. 7) wherein the rotating member (31) comprises a first portion (31) and a second portion (32), a common boundary between the first portion and the second portion is parallel to the first axis (Fig. 8), and the first portion and the second portion form a predetermined angle (Paragraph [0062]). Regarding Claim 4, Ping teaches the dust box (Fig. 7) wherein in response to the rotating member (31) being located at the first position, a first end of the first portion away from the bottom wall presses against the second side wall; and in response to the rotating member being located at the second position (Paragraphs [0064] and [0065), a gap is formed between the first end of the first portion and the second side wall; and the gap is configured to accommodate the protruding portion (41), such that the dust box lid (4) completely covers the top of the accommodation space (Paragraphs [0064] and [0065). Regarding Claim 5, Ping teaches the dust box (Fig. 7) further comprising: a filter screen assembly (filter component, 2; Fig. 7) configured to be removably disposed in the accommodation space (Fig. 7), wherein a first raised portion is provided on a first side of the filter screen assembly (2), and the first raised portion is configured to cooperate with the elastic sheet assembly (3) in a process in which the filter screen assembly is placed in the accommodation space (Paragraph [0064]). Regarding Claim 6, Ping teaches the dust box (Fig. 7) wherein the second portion (32) is pressed by the first raised portion in the process in which the filter screen assembly is placed in the accommodation space, such that the rotating member (31) rotates from the first position to the second position (Paragraph [0062]). Regarding Claim 8, Ping teaches the dust box (Fig. 7) wherein the second side wall (Annotated Fig. 7) is provided with a recess (mounting groove, 117), and the elastic sheet assembly (3) is provided within the recess (Paragraph [0059]). Regarding Claim 9, Ping teaches the dust box (Fig. 7) wherein the second side wall (Annotated Fig. 7) abuts against the first side wall (Annotated Fig. 7), and the elastic sheet assembly (3) is provided at a portion of the second side wall close to the first side wall (Annotated Fig. 7). Regarding Independent Claim 10, Ping teaches an automatic cleaning apparatus (sweeping robot, Fig. 20), comprising a dust box (Fig. 7), comprising: a dust box body (box body, 1), comprising a bottom wall (Annotated Fig. 7) and at least one side wall (Annotated Fig. 7) disposed around an edge of the bottom wall (Annotated Fig. 7), wherein the side wall (Annotated Fig. 7) extends from the bottom wall (Annotated Fig. 7) in a direction away from the bottom wall (Annotated Fig. 7), and the bottom wall (Annotated Fig. 7) and the side wall (Annotated Fig. 7) enclose an accommodation space(Annotated Fig. 7); and a dust box lid (cover, 4), pivotally connected to a wall (Annotated Fig. 7) of the dust box body (1) and configured to cover a top of the accommodation space (Annotated Fig. 7), wherein a second side wall (Annotated Fig. 7) of the dust box (1) has an elastic sheet assembly (spring, 3) pivotally and elastically connected to the second side wall (Annotated Fig. 7),; and the dust box lid (4) has a protruding portion (bone portion, 41; Fig. 10) configured to cooperate with the elastic sheet assembly (3) in a process in which the dust box lid (4) covers the top of the accommodation space (Paragraph [0064]). Although Ping teaches a dust box lid (cover, 4), pivotally connected (Fig. 7), the reference does not explicitly teach a dust box lid pivotally connected to a first side wall. it would have been obvious to one having ordinary skill in th art before the effective filing date of the claimed invention to modify the dust box of Ping to teach a dust box lid pivotally connected to a first side wall, as claimed, since it has been held that rearranging parts of an invention involves only routine skill in the art (MPEP 2144.04). Ping does not explicitly teach the elastic sheet assembly is rotatable relative to the second side wall about a first axis extending in a first direction, the first direction being parallel to the bottom wall, however, it would have been obvious to one having ordinary skill in th art before the effective filing date of the claimed invention to modify the dust box of Ping to further explicitly teach the elastic sheet assembly is rotatable relative to the second side wall about a first axis extending in a first direction, the first direction being parallel to the bottom wall, as claimed, since it has been held that rearranging parts of an invention involves only routine skill in the art (MPEP 2144.04). Regarding Claim 11, Ping teaches the dust box (Fig. 7) wherein the accommodation space (Annotated Fig. 7) is divided into a first accommodation space (117) and a second accommodation space (121), the first accommodation space is configured to accommodate the filter screen assembly (2), and the second accommodation space (121) is configured to accommodate garbage collected by the dust box (Paragraph [0082]). Regarding Claim 12, Ping teaches the dust box (Fig. 7) with the filter screen assembly and further with sides that can be used as a handle structure but fails to explicitly teach a handle structure is provided at a middle position of a surface of the filter screen assembly. it would have been obvious to one having ordinary skill in th art before the effective filing date of the claimed invention to modify the dust box of Ping to further explicitly teach a handle structure but fails to explicitly teach a handle structure is provided at a middle position of a surface of the filter screen assembly, as claimed, since it has been held that rearranging parts of an invention involves only routine skill in the art (MPEP 2144.04). Regarding Claim 13, Ping teaches the automatic cleaning apparatus (sweeping robot, Fig. 20) wherein the elastic sheet assembly (spring, 3) comprises: a rotating member (contact part, 31), which is rotatable relative to the second side wall about the first axis between a first position and a second position (positions before being squeezed and position after being squeezed); and an elastic member, which causes the rotating member to be biased at the first position (Paragraph [0067]). Regarding Claim 14, Ping teaches the automatic cleaning apparatus (sweeping robot, Fig. 20) wherein the rotating member (31) comprises a first portion (31) and a second portion (32), a common boundary between the first portion and the second portion is parallel to the first axis (Fig. 8), and the first portion and the second portion form a predetermined angle (Paragraph [0062]). Regarding Claim 15, Ping teaches the automatic cleaning apparatus (sweeping robot, Fig. 20) wherein in response to the rotating member (31) being located at the first position, a first end of the first portion away from the bottom wall presses against the second side wall; and in response to the rotating member being located at the second position (Paragraphs [0064] and [0065), a gap is formed between the first end of the first portion and the second side wall; and the gap is configured to accommodate the protruding portion (41), such that the dust box lid (4) completely covers the top of the accommodation space (Paragraphs [0064] and [0065). Regarding Claim 16, Ping teaches the automatic cleaning apparatus (sweeping robot, Fig. 20) further comprising: a filter screen assembly (filter component, 2; Fig. 7) configured to be removably disposed in the accommodation space (Fig. 7), wherein a first raised portion is provided on a first side of the filter screen assembly (2), and the first raised portion is configured to cooperate with the elastic sheet assembly (3) in a process in which the filter screen assembly is placed in the accommodation space (Paragraph [0064]). Regarding Claim 17, Ping teaches the automatic cleaning apparatus (sweeping robot, Fig. 20) wherein the second portion (32) is pressed by the first raised portion in the process in which the filter screen assembly is placed in the accommodation space, such that the rotating member (31) rotates from the first position to the second position (Paragraph [0062]). Regarding Claim 19, Ping teaches the automatic cleaning apparatus (sweeping robot, Fig. 20) wherein the second side wall (Annotated Fig. 7) is provided with a recess (mounting groove, 117), and the elastic sheet assembly (3) is provided within the recess (Paragraph [0059]). Regarding Claim 20, Ping teaches the automatic cleaning apparatus (sweeping robot, Fig. 20) wherein the second side wall (Annotated Fig. 7) abuts against the first side wall (Annotated Fig. 7), and the elastic sheet assembly (3) is provided at a portion of the second side wall close to the first side wall (Annotated Fig. 7). Allowable Subject Matter Claims 7 and 18 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Although Ping teaches a dust box and an autonomous cleaning apparatus, the reference fails to teach, suggest or make obvious a second raised portion is provided on a second side of the filter screen assembly, the first side is provided opposite the second side, and the first raised portion is centro-symmetrical to the second raised portion with respect to a center of the filter screen assembly. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to KATINA N HENSON whose telephone number is (571)272-8024. The examiner can normally be reached Monday - Thursday; 5:30am to 3:30pm. 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, Monica Carter can be reached at 571-272-4475. 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. /KATINA N. HENSON/Primary Examiner, Art Unit 3723
Read full office action

Prosecution Timeline

Jan 04, 2024
Application Filed
Jan 14, 2026
Non-Final Rejection — §103 (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
54%
Grant Probability
86%
With Interview (+31.9%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 631 resolved cases by this examiner. Grant probability derived from career allow rate.

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