Prosecution Insights
Last updated: April 19, 2026
Application No. 18/727,569

REVISION SYSTEM FOR SPINAL IMPLANTS

Final Rejection §102
Filed
Jul 09, 2024
Examiner
BOLES, SAMEH RAAFAT
Art Unit
3775
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Nexus Spine, LLC
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
3y 5m
To Grant
95%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
671 granted / 961 resolved
At TC average
Strong +25% interview lift
Without
With
+25.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
41 currently pending
Career history
1002
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
41.8%
+1.8% vs TC avg
§102
37.3%
-2.7% vs TC avg
§112
13.1%
-26.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 961 resolved cases

Office Action

§102
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 . According to the Amendment filed on 11/18/25, Claims 1-6, 8-14 are amended, and claims 15-20 are added. Election/Restrictions Newly amended and submitted claims 13-20 directed to an invention that is independent or distinct from the invention originally claimed for the following reasons: the originally filed method claims 13-14 where directed to “a method for performing spinal fusion to reduce surgical exposure required for any necessary future revision surgery”, but the newly amended and submitted claims 13-20 are now directed to “ A method for extending spinal fusion implants in situ” which is different and distinct from what was originally claimed. Since applicant has received an action on the merits for the originally presented invention, this invention has been constructively elected by original presentation for prosecution on the merits. Accordingly, claims 13-20 are withdrawn from consideration as being directed to a non-elected invention. See 37 CFR 1.142(b) and MPEP § 821.03. To preserve a right to petition, the reply to this action must distinctly and specifically point out supposed errors in the restriction requirement. Otherwise, the election shall be treated as a final election without traverse. Traversal must be timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are subsequently added, applicant must indicate which of the subsequently added claims are readable upon the elected invention. Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention. 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-6, 8-12 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Agarwal (US. 20160022341). Agarwal discloses a revision system capable for extending spinal fusion implants constructs in situ, the system comprising: a first assembly 12, fig. 1b comprising: a rod 16 configured to couple a first vertebra to a second vertebra fig. 1b; a first anchor configured to be inserted into a bone fig. 1b: and a first coupler configured to couple the first anchor to the rod fig. 1b, the first coupler comprising: a top 212, fig. 4d having a top opening, a bottom having a bottom opening fig. 4c, and a slot contiguous with the top opening fig. 4d, wherein the first anchor is configured to extend through the bottom opening, fig. 4c, the rod is configured to be disposed within the slot fig. 1b, and the top opening is configured to receive a fastener 238, and a second assembly configured to be fixedly secured to a third vertebra (para. 3), the second assembly comprising; a second anchor 210; and an implant body comprising: a receptacle portion 212 configured to receive the second anchor; and a rod portion 222, fig. 4c that is at least one of fixedly coupled to and integrally formed with the receptacle portion 212, the rod portion being configured to couple to an end of the rod 16 extending from the slot, wherein the rod portion comprises a rod receptacle (slot) configured to receive the end of the rod, wherein the rod receptacle comprises a cinch band 236, fig. 4c adapted to be moved over a portion of the rod receptacle comprising the slot so as to force the rod receptacle to a closed position over the end of the rod, further comprising a collet 228, fig. 4c having an aperture 234 sized to receive the end of the rod. the collet 228 being adapted to be placed on the end of the rod and to fit within 226 the rod receptacle, the receptacle the rod receptacle is capable to receive the end of the rod while a range of motion is maintained between the rod receptacle and the end of the rod wherein the range of motion comprises telescopic motion, wherein the end of the rod extends from the slot in a direction roughly parallel to an imaginary line between the first assembly and the second assembly fig. 1b, wherein the first assembly further comprises a second coupler 14, fig. 1b comprising: a second top having a second top opening, a second bottom having a second bottom opening: and a second slot contiguous with the second top opening, wherein the rod is additionally disposed within the second slot fig. 1b, wherein the rod portion 212 comprises a rod receptacle having a receptacle slot fig. 4d configured to allow a diameter of the rod receptacle to be reduced to form a stronger coupling with the end of the rod, wherein the rod portion comprises a cinch band 236 adapted to be moved over a portion of the rod receptacle 222 comprising the slot so as to reduce the diameter of the rod receptacle, wherein a coupling between the end of the rod and the rod receptacle is configured to lock a position of the end of the rod receptacle with respect to the rod, wherein prior to being locked the position is at least one of polyaxially adjustable and telescopically adjustable Response to Arguments Applicant’s arguments with respect to claim(s) have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMEH RAAFAT BOLES whose telephone number is (571)270-5537. The examiner can normally be reached 9-5 pm. 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, Kevin Truong can be reached at 571-272-4705. 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. /SAMEH R BOLES/Primary Examiner, Art Unit 3775
Read full office action

Prosecution Timeline

Jul 09, 2024
Application Filed
Jul 16, 2025
Non-Final Rejection — §102
Nov 18, 2025
Examiner Interview Summary
Nov 18, 2025
Response Filed
Nov 18, 2025
Applicant Interview (Telephonic)
Mar 09, 2026
Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 5m to grant Granted Apr 14, 2026
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Patent 12588915
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2y 5m to grant Granted Mar 31, 2026
Patent 12589005
INTERBODY SPINAL CAGE
2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
70%
Grant Probability
95%
With Interview (+25.3%)
3y 5m
Median Time to Grant
Moderate
PTA Risk
Based on 961 resolved cases by this examiner. Grant probability derived from career allow rate.

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