Prosecution Insights
Last updated: August 17, 2026
Application No. 18/654,194

FLOOR BRUSH AND VACUUM CLEANER

Non-Final OA §102§112
Filed
May 03, 2024
Priority
May 08, 2023 — CN 202310511574.4
Examiner
RODGERS, THOMAS RAYMOND
Art Unit
3723
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Techtronic Power Tools Technology Limited
OA Round
1 (Non-Final)
58%
Grant Probability
Moderate
1-2
OA Rounds
7m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allowance Rate
226 granted / 386 resolved
-11.5% vs TC avg
Strong +59% interview lift
Without
With
+59.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
46 currently pending
Career history
426
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
47.3%
+7.3% vs TC avg
§102
29.7%
-10.3% vs TC avg
§112
21.2%
-18.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 386 resolved cases

Office Action

§102 §112
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 III (Figures 11-16) in the reply filed on 6/ 24/2026 is acknowledged. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statements (IDS) submitted on 12/6/2024 is being considered. Drawings The drawings are objected to under 37 CFR 1.83(a). The drawings must show every feature of the invention specified in the claims. Therefore, the suction cavity of claim 1 must be shown or the feature(s) canceled from the claim(s). No new matter should be entered. 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. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. 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. 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 following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: Biasing assembly in claim 1. Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. When looking to the specification, the biasing assembly appears to be a compression spring. This will be the structured required of the claim or equivalents thereof. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-4 and 15-20 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 recites the limitation “the rolling brush assembly is moved axially outward from the housing under the effect of a biasing force.” The Examiner does not believe the brush roll 309 can be removed from the housing axially. Item 307 is too large to fit through the aperture of item 304. The Examiner does believe the brush roll can have some axial play and then rotate out of the suction nozzle. But that is not what is discussed in the claim. Since the specification does not disclose the information needed for one skilled in the art to fully understand how the brush is removed, the claim is determined to lack the proper written description. For Examination purposes, any assembly wherein the brush is released from axial movement will fulfill this claim limitation. 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. Claims 17-20 are 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. Claim 17 recites an elastic member. It is unclear if this is part of the biasing assembly. As such the claim is determined to be indefinite. For Examination purposes, it is presumed to be a different biasing member. Claim Rejections - 35 USC § 102 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 1-4 and 15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Genn (US 2015/0265117). Regarding claim 1, Genn discloses a floor brush, wherein the floor brush comprises: a housing (Item 2) defining a dust suction cavity (Item 11), and the housing comprising an end cover at one side thereof a rolling brush assembly (Item 8) comprising a rolling brush being able to pass through an opening of the end cover and being arranged in the dust suction cavity; a biasing assembly (Item 6), the rolling brush assembly being biasedly mounted relative to the housing by the biasing assembly; and an automatic locking apparatus (Item 5) having a release position and a locking position relative to the rolling brush assembly, wherein at the locking position, the automatic locking apparatus fixes the rolling brush assembly in position, and at the release position, the rolling brush assembly is moved axially outward from the housing under the effect of a biasing force (Paragraph 29). Regarding claim 2, Genn discloses the floor brush as claimed in claim 1, wherein the rolling brush assembly further comprises a locking member (Item 32) that is connected to the rolling brush, and the locking member engages with the automatic locking apparatus to fix the rolling brush assembly in position. Regarding claim 3, Genn discloses the floor brush as claimed in claim 1, wherein the biasing assembly comprises a compression spring (6) and a pushing block (Item 30), and the pushing block abuts the rolling brush assembly. Regarding claim 4, Genn discloses the floor brush as claimed in claim 3, wherein the biasing assembly further comprises a retaining frame (Item 20), and the compression spring is compressed between the pushing block and the retaining frame. Regarding claim 15, Genn discloses the floor brush as claimed in claim 1, wherein the automatic locking apparatus comprises a trigger (Item 20) and a rotating locking block (Item 32); the trigger is arranged to be axially movable, and the rotating locking block switches between the release position and the locking position in response to triggering by the trigger, wherein in the locking position, the rotating locking block is locked on the end cover, and in the release position, the rotating locking block is separated from the end cover. Allowable Subject Matter Claim 16 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(a), set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. The prior art fails to disclose or teach the end cover comprising a stop part for engaging the rotating locking block, in the context with all of the other claim limitations. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to TOM R RODGERS whose telephone number is (313)446-4849. The examiner can normally be reached Monday thru Friday 8AM-5PM EST. 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, David Posigian can be reached at (313) 446-6546. 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. /TOM RODGERS/Primary Examiner, Art Unit 3723
Read full office action

Prosecution Timeline

May 03, 2024
Application Filed
Jul 21, 2026
Non-Final Rejection mailed — §102, §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
58%
Grant Probability
99%
With Interview (+59.0%)
2y 11m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 386 resolved cases by this examiner. Grant probability derived from career allowance rate.

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