Prosecution Insights
Last updated: April 19, 2026
Application No. 18/823,454

SLIDE RAIL ASSEMBLY

Non-Final OA §103
Filed
Sep 03, 2024
Examiner
TEFERA, HIWOT E
Art Unit
3637
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
King Slide Technology Co. Ltd.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
596 granted / 804 resolved
+22.1% vs TC avg
Strong +25% interview lift
Without
With
+25.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
37 currently pending
Career history
841
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
46.4%
+6.4% vs TC avg
§102
29.1%
-10.9% vs TC avg
§112
21.7%
-18.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 804 resolved cases

Office Action

§103
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 . Claim Rejections - 35 USC § 103 1. 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. 2. Claims 1-20 are rejected under 35 U.S.C. 103 as being unpatentable over US 2021/0145173 (Chen ‘173) in further in view of US 2018/0031037 (Chen ‘037). With respect to claim 1, Chen ‘173 shows a slide rail assembly (20), comprising: a first rail (22) arranged with an auxiliary structure (38, Fig.1); a second rail (26); a third rail (24) movably mounted between the first rail and the second rail; the third rail (24) arranged with an engaging member (72, Fig.1); the second rail (26) arranged with a predetermined part (92, 94, Fig.1), the predetermined part having a first predetermined section (92) and a second predetermined section (94); and a switching member (110, Fig.2) movable relative to the third rail (24, FIg.2) and comprising a first contact part (a first contact part on 120, Fig.13) and a second contact part (second contact on 120, Fig.17); wherein when the third rail (24) is located at a first predetermined position relative to the first rail (22) and the second rail (26) is located at a second predetermined position relative to the third rail (24), the slide rail assembly has a first predetermined length; wherein during a process of the switching member (110) being moved to switch from a first state (S1) to a second state (S2) with the second rail (26) being moved from the second predetermined position (E2, FIg.10) along a retracting direction (D2), the first contact part (120) of the switching member (110) in the second state (S2, Fig.13) and the first predetermined section (92, Fig.13) of the predetermined part are configured to abut against each other (Fig.13), such that the second rail (26) is configured to drive the third rail (24) to move along the retracting direction to a third predetermined position (P, “such that the third rail 26 is configured to drive the second rail 24 to move along the retracting direction D2” section 0066); wherein when the third rail (24) is located at the third predetermined position (P, Fig.16) relative to the first rail (22), the engaging member (72) is configured to be engaged with the auxiliary structure (38 at 44, FIg.16) in order to prevent the third rail (24) from being moved along an opening direction (D1; “such that the engaging section 78 of the second engaging member 72 is engaged with the engaging section 44 of the rear base 38 in order to prevent the second rail 24 from being moved relative to the first rail 22 from the predetermined position P along the extending direction D1” section 0069), and the slide rail assembly has a second predetermined length shorter than the first predetermined length; wherein during a process of the second rail (26) being moved along the opening direction relative to the third rail (24) located at the third predetermined position (P, FIg.17), the second contact part (another contact part on 120) of the switching member (110) and the second predetermined section (94) of the predetermined part are configured to abut against each other (Fig.17) in order to drive the switching member (110) to return from the second state (S2, FIg.17) to the first state (S1, FIg.18, section 0071). With respect to claim 1, Chen ‘173 shows the predetermined part arranged on the second rail not the third rail and the switching member is movably mounted on the third rail not the second rail. Chen ‘037 teaches the third rail (20) arranged with a predetermined part (60, FIg.2, Fig.13) and the switching member (64, Fig.2) movably mounted on the second rail (22). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the slide assembly such that the predetermined part is arranged on the third rail and the switching member is on the second rail, since it has been held that a mere reversal of the essential working parts of a device involves only routine skill in the art; and such a modification would not affect the functionality of the slide rail assembly and would still result in the abutment of the switching member and the predetermined part. With respect to claim 2, modified Chen ‘173 teaches wherein the second predetermined section (94) of the predetermined part has a guiding structure (132, Fig.17). With respect to claim 3, modified Chen ‘173 teaches wherein the guiding structure (132) has an inclined surface (Fig.17). With respect to claim 4, modified Chen ‘173 teaches wherein the switching member (110) is movably mounted on the second rail (26, as modified by Chen ‘037). With respect to claim 5, modified Chen ‘173 teaches wherein the switching member (110) is pivotally connected to the second rail (26) through a shaft member (118, Fig.2). With respect to claim 6, modified Chen ‘173 teaches wherein the switching member (110) comprises a first part (end part with hole for 118, Fig.2), a second part (other end at 130) and an extension part (part with hole for 120) connected between the first part and the second part; wherein the first part is pivotally connected to the second rail (26, as modified by Chen ‘037) through the shaft member (118), and the extension part comprises the first contact part and the second contact part (120, Fig.3). With respect to claim 7, modified Chen ‘173 teaches wherein one of the second part (130) of the switching member (110) is arranged with a first limiting feature, and the second rail (26) is arranged with a second limiting feature (128). With respect to claim 8, modified Chen ‘173 teaches wherein one of the first limiting feature and the second limiting feature is formed with a limiting space (130, Fig.2), and the other one of the first limiting feature and the second limiting feature is a protrusion part (128, Fig.2) passing through a portion of the limiting space (Fig.3). With respect to claim 9, modified Chen ‘173 teaches wherein one of the switching member and the second rail comprises a holding feature (128), and the other one of the switching member and the second rail comprises a corresponding feature (end of slot 130, Fig.13); wherein when the switching member (110) is in the second state (S2), the holding feature (128) is configured to be detachably engaged with the corresponding feature (end of slot 130) in order to hold the switching member in the second state. With respect to claim 10, modified Chen ‘173 teaches wherein the auxiliary structure (38, Fig.1) comprises a first auxiliary part (42) and a second auxiliary part (44); wherein when the third rail (24) is located at the third predetermined position (P, Fig.16, Fig.17) relative to the first rail (22), the engaging member (72) is configured to be engaged between the first auxiliary part (42, FIg.15) and the second auxiliary part (44, Fig.16) in order to prevent the third rail (24) from being moved along the opening direction or the retracting direction (section 0069). With respect to claim 11, modified Chen ‘173 teaches wherein the first rail (22) has a first end part and a second end part opposite to each other; wherein the auxiliary structure (38, Fig.1) is arranged adjacent to the second end part, and the first rail (22) is further arranged with a blocking structure (32) adjacent to the first end part (Fig.1). With respect to claim 12, modified Chen ‘173 teaches wherein the third rail (24, Fig.1) is further arranged with a blocking member (54, Fig.1); wherein when the third rail is located at the first predetermined position (E1, Fig.9) relative to the first rail, the blocking member (54) and the blocking structure (32) are configured to block each other (via 60 on blocking member 54 and 36 on blocking structure 32, FIg.9) in order to prevent the third rail (24) from being moved relative to the first rail (22) from the first predetermined position (E1) along the retracting direction (D2) (“the engaging part 60 of the first engaging member 54 is blocked by the blocking feature 36 of the front base 32, in order to prevent the second rail 24 from being moved from the first extended position E1 along a retracting direction D2” section 0062); wherein during a process of the second rail (26) being moved from the second predetermined position (E2, Fig.11) along the retracting direction (D2), a predetermined feature (98, Fig.12) of the second rail (26) is configured to drive the blocking member (54, on disengagement part 140 of 54, Fig.12) to move, such that the blocking member (54, Fig.13) and the blocking structure (32) no longer block each other (Fig.13, paragraph 0066). With respect to claims 13 and 14, Chen ‘173 in view of Chen ‘037 teach all the limitation as discussed above in claim 1. With respect to claim 15, modified Chen ‘173 teaches all the limitations as discussed above in claim 2. With respect to claim 16, modified Chen ‘173 teaches all the limitations as discussed above in claim 9 With respect to claim 17, modified Chen ‘173 teaches all the limitations as discussed above in claim 10. With respect to claim 18, modified Chen ‘173 teaches all the limitations as discussed above in claim 11. With respect to claims 19 and 20, modified Chen ‘173 teaches all the limitations as discussed above in claim 12. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HIWOT E TEFERA whose telephone number is (571)270-3320. The examiner can normally be reached M-F 9-6PM. 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, Daniel Troy can be reached at 5712703742. 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. /HIWOT E TEFERA/Examiner, Art Unit 3637
Read full office action

Prosecution Timeline

Sep 03, 2024
Application Filed
Jan 04, 2026
Non-Final Rejection — §103
Apr 14, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599230
STORAGE CABINET FOR DANCING MIRROR WITH ENLARGED DISPLAY SCREEN AND AUDIO
2y 5m to grant Granted Apr 14, 2026
Patent 12595878
DISPLAY DEVICE
2y 5m to grant Granted Apr 07, 2026
Patent 12590755
MULLION GUIDE ELEMENT FOR A REFRIGERATOR APPLIANCE
2y 5m to grant Granted Mar 31, 2026
Patent 12584680
DOOR SUPPORT FEATURE OF A REFRIGERATION UNIT
2y 5m to grant Granted Mar 24, 2026
Patent 12584339
FURNITURE DRIVE
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
74%
Grant Probability
99%
With Interview (+25.1%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 804 resolved cases by this examiner. Grant probability derived from career allow 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