Prosecution Insights
Last updated: May 29, 2026
Application No. 18/570,837

BASE ASSEMBLY AND CHILD SAFETY SEAT FOR VEHICLE

Non-Final OA §102§112
Filed
Dec 15, 2023
Priority
Jul 26, 2021 — CN 202110844522.X +2 more
Examiner
NELSON JR, MILTON
Art Unit
3636
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Wonderland Switzerland AG
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1566 granted / 1851 resolved
+32.6% vs TC avg
Moderate +6% lift
Without
With
+5.6%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 12m
Avg Prosecution
29 currently pending
Career history
1882
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
36.1%
-3.9% vs TC avg
§102
15.0%
-25.0% vs TC avg
§112
47.7%
+7.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1851 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 Embodiment 1, Figures 1-9, claims 1-9 and 22-25, in the response filed January 5, 2026 is acknowledged. All remaining claims have been withdrawn from further consideration. Drawings The drawings filed December 15, 2023 are approved. Information Disclosure Statement The information referred to in the IDS filed November 21, 2025 has been considered. The information referred to in the IDS filed July 24, 2025 has been considered. The information referred to in the IDS filed April 25, 2025 has been considered. The information referred to in the IDS filed March19, 2025 has been considered. The information referred to in the IDS filed June 19, 2024 has been considered. The information referred to in the IDS filed December 15, 2023 has been considered. 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. Claim 9 recites the limitation "the first end of the traction element" in line 3. There is insufficient antecedent basis for this limitation in the claim. 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. Claim(s) 1, 4, 5, 7, 8, 9 and 22, as best understood with the above cited indefiniteness, is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Caldemeyer (US3794381). Note a base assembly comprising: a base (12); a supporting leg (17); a sliding element (33) telescopically disposed on the base (10), the supporting leg (20) being pivotally connected to the sliding element and extending and retracting together with the sliding element; and a traction element (36 or 37) configured to pull the supporting leg to move towards the base as the supporting leg rotates from an unfolded position (unlatched) to a folded position (Figure 4). Regarding claim 4, note the base assembly further comprises a driving element (36) pivoted (by 37) with the supporting leg, and the driving element is configured to roll up the traction element so that the supporting leg is pulled to move towards the base. See Figures 1 and 7. Regarding claim 5, note the driving element is disposed on the supporting leg, and the driving element is integrally formed with the supporting leg and formed as a part of the supporting leg; alternatively, the driving element and the supporting leg are separately formed and fixedly connected to each other by a fixing structure (38, 39). See Figure 7. Regarding claim 7, note the driving element is shaped as a boss, and the driving element is provided with an arc-shaped part (38) matched with the traction element; alternatively, the driving element is shaped as a pulley; alternatively, the driving element is shaped as a column. Regarding claim 8, note a first end of the traction element is connected with the base (by way of 17 and 33), and a second end of the traction element is connected with one of the driving element (36; see Figure 7) and an upper end of the supporting leg. Regarding claim 9, note an inner top wall of the base is provided with a fixing column (56), and the first end of the traction element (40) is fixed on the fixing column by a first fastener (41, 54, 42). Regarding claim 22, note the base assembly further comprises a base bracket (41U) disposed in the base, the sliding element (33) is a sliding bracket slidably connected to the base (see Figure 5), a sliding groove is provided on one of the base bracket and the sliding bracket (33), and a sliding rod (46, 47) matched with the sliding groove is provided on the other of the base bracket and the sliding bracket. Claim(s) 1, 2, 3, 9, 23 and 25, as best understood with the above cited indefiniteness, is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by DaSilva (US6199949). Note a base assembly comprising: a base (14); a supporting leg (21); a sliding element (30) telescopically disposed on the base, the supporting leg being pivotally connected to the sliding element and extending and retracting together with the sliding element; and a traction element (27) configured to pull the supporting leg to move towards the base as the supporting leg rotates from an unfolded position to a folded position. Regarding claim 2, note the traction element is a flexible element (spring). Regarding claim 3, note the flexible element is a steel wire, a cord (coiled cord), or a webbing. See Figure 4. Regarding claim 9, note an inner top wall of the base is provided with a fixing column (28), and the first end of the traction element is fixed on the fixing column by a first fastener (hole through 28 which engages 27). Regarding claim 23, note a child safety seat (10) for a vehicle comprising: a base assembly according to any one of claims 1; and a seat (12) disposed on the base assembly. Regarding claim 25, note an accommodating groove (inner cavity of the base) for accommodating the supporting leg is provided on the bottom of the base, and after the supporting leg is folded at the bottom of the base, a lower surface of the supporting leg does not protrude from a bottom surface of the base. See Figure 4. Allowable Subject Matter Claims 6 and 24 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. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. FR3002886A1 shows a base having an adjustable support leg. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MILTON NELSON JR whose telephone number is (571)272-6861. The examiner can normally be reached M-F 5:30am-1:30pm. 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. 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. mn /MILTON NELSON JR/February 5, 2026 Primary Examiner, Art Unit 3636
Read full office action

Prosecution Timeline

Dec 15, 2023
Application Filed
Feb 11, 2026
Non-Final Rejection mailed — §102, §112
Apr 22, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12635800
Seat mountable digital display assembly and mountable holder assembly for beverages and accessories with digital display
2y 7m to grant Granted May 26, 2026
Patent 12636983
CHILD HOLDING DEVICE, MORE PARTICULARLY STROLLER
2y 9m to grant Granted May 26, 2026
Patent 12628940
PLATFORM ASSEMBLY WITH ROTATABLE SEATING ASSEMBLIES HAVING ADJUSTABLE SUPPORT PLATFORMS"
3y 2m to grant Granted May 19, 2026
Patent 12630057
METHOD FOR DETECTING WEAR OF SEAT CUSHION AND DETECTION DEVICE THEREFOR
2y 11m to grant Granted May 19, 2026
Patent 12630060
LOCKING ASSEMBLY FOR RECLINER
2y 10m to grant Granted May 19, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
85%
Grant Probability
90%
With Interview (+5.6%)
1y 12m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1851 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month