Prosecution Insights
Last updated: April 19, 2026
Application No. 18/086,829

SPRING MECHANISM FOR ROCKER ASSEMBLY AND ROCKER ASSEMBLY COMPRISING THE SAME

Non-Final OA §103
Filed
Dec 22, 2022
Examiner
SAHNI, VISHAL R
Art Unit
3616
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Leggett & Platt (Jiaxing) Co. Ltd.
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
95%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
731 granted / 970 resolved
+23.4% vs TC avg
Strong +19% interview lift
Without
With
+19.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
46 currently pending
Career history
1016
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
39.5%
-0.5% vs TC avg
§102
33.1%
-6.9% vs TC avg
§112
24.3%
-15.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 970 resolved cases

Office Action

§103
DETAILED ACTION This is a first Non-Final Office Action on the merits in response to the application filed 12/22/22. The request for foreign priority to a corresponding CN application filed 12/21/21 has been received and is proper. Claims 1-11 are currently pending. Claims 5-6 contain allowable subject matter. Claims 1-4 and 7-11 are rejected as detailed below. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Objections Claim 11 is objected to under 37 CFR 1.75(c) as being in improper form because a multiple dependent claim cannot depend from any other multiple dependent claim (i.e., claim 7). See MPEP § 608.01(n). Accordingly, the claim 11 not been further treated on the merits. 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. Maki in view of Enriquez Claim(s) 1-4 and 7-8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Maki et al. (U.S. Patent No. 6,918,632) in view of Enriquez (U.S. Patent Pub. No. 2017/0240236). Maki is directed to a rocker mechanism for a rocker recliner. See Abstract. Enriquez is directed to a bicycle mounting to support an infant seat. See Abstract. Claim 1: Maki discloses a spring mechanism [Figs. 3a, 3b, 5-7] for a rocker assembly (22), the spring mechanism being connected to a rocker mechanism (40, 42) of the rocker assembly to assist a rocker member (20) of the rocker mechanism in returning from a rocking position to a rest position, characterized in that the spring mechanism comprises two mounting plates (58, 68) opposed at a spacing and two springs (44, 46) connected between the two mounting plates, each of the mounting plates being provided with two sets of holding structures (134, 137) for holding each of the springs in place on the mounting plate. Figs. 3a, 3b, 5-7. Maki discloses all the limitations of this claim except for the “spacer” between the mounting plate and spring. Enriquez discloses a spring mechanism that also supports a seat, with a spring (42) located between mounting plates (52), wherein a spacer (44) is provided between each mounting plate and each spring to avoid the mounting plate from contacting at least one turn of the spring. See Figs. 5, 6. It would have been obvious to a person having ordinary skill in the art at the effective filing date of the invention to include a spacer/washer in the Maki spring mechanism because this prevents direct frictional contact between the spring and plates, and this protection may increase the longevity of the spring and overall functionality of the mechanism. Claim 2: Enriquez discloses that the spacer takes the form of a washer. It would be obvious to use plastic because the material selected is a design choice, based on factors such as plastic being relatively cheap and available. Claim 3: Maki discloses that each set of holding structures comprises a clip portion (134) and a locating protrusion (137) formed on the mounting plate, and end turn of the spring is clipped by the clip portion and positioned by the locating protrusion. See Fig. 3b. Claim 4: Maki discloses that each mounting plate is laterally provided with two lateral openings (116-122) to allow the end turns of the springs and the spacers to at least partially pass therethrough and be held on the mounting plate by the clip portions and locating protrusions. Claim 7: Maki discloses a rocker assembly, comprising a base and two rocker mechanisms mounted symmetrically at the left and right sides of the base, characterized in that the rocker assembly further comprises two spring mechanisms according to any of claims 1 to 6, each of which is connected to the respective rocker mechanism and to the base. See Figs. 1, 2. Claim 8: Maki discloses that the base comprises two support tubes arranged at a spacing in a horizontal direction and two base plates symmetrically disposed at the left and right sides of the two support tubes, each rocker mechanism being placed on a respective base plate, and each spring mechanism being connected to the respective base plate via a first mounting plate. See Figs. 2, 5, 6. Maki in view of Enriquez and Lawson Claim(s) 9-11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Maki in view of Enriquez and Lawson et al. (CA 2974705). Lawson is directed to a rocker and recline linkage. See Abstract. Claim 9: Maki discloses that each rocker mechanism comprises a rocker member (62) to which a movable member (64) is attached, wherein the movable member is movable as the rocker member swings on the base plate about a fulcrum. See Fig. 2. However, the “movable member” disclosed in Maki is used differently than the instant application. While another teaching reference is not necessarily needed here, for the sake of moving prosecution forward, Lawson is used here to teach the use of a movable member (34, 38) that is attached to the rocker member (22) and is movable as the rocker member swings. See Figs. 1, 22-23. It would be obvious to a one skilled in the art at the effective filing date of the invention to use this movable member to limit the range of motion of the rocker, which is preferred for reclining furniture. Claim 10: Lawson discloses that each movable member is connected to a corresponding rocker member via an intermediate bracket, and between two symmetrically arranged intermediate brackets, there are connected two connecting rods which are offset both horizontally and vertically; wherein a second mounting plate of each spring mechanism is fixedly connected to an intermediate connecting plate, which is inserted in a horizontal direction between and respectively connected to the two connecting rods. See Figs. 1, 22-23. Claim 11: Lawson discloses a pair of stops is provided symmetrically at the left and right sides of one of the support tubes, intended to abut against the corresponding movable member to limit its further movement. See Figs. 1, 22-23 (38 contacting 12). See also claim objection above. Allowable Subject Matter Claims 5 and 6 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to VISHAL R SAHNI whose telephone number is (571)270-3838. The examiner can normally be reached M-F 7am-3pm PST. 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, Robert Siconolfi can be reached at 571-272-7124. 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. VISHAL SAHNI Primary Examiner Art Unit 3657 /VISHAL R SAHNI/Primary Examiner, Art Unit 3616 December 29, 2025
Read full office action

Prosecution Timeline

Dec 22, 2022
Application Filed
Dec 29, 2025
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
75%
Grant Probability
95%
With Interview (+19.3%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 970 resolved cases by this examiner. Grant probability derived from career allow rate.

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