Prosecution Insights
Last updated: April 19, 2026
Application No. 18/284,648

Expansion Anchor

Non-Final OA §102
Filed
Sep 28, 2023
Examiner
SAETHER, FLEMMING
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Hilti Aktiengesellschaft
OA Round
1 (Non-Final)
65%
Grant Probability
Moderate
1-2
OA Rounds
3y 1m
To Grant
94%
With Interview

Examiner Intelligence

Grants 65% of resolved cases
65%
Career Allow Rate
1061 granted / 1636 resolved
+12.9% vs TC avg
Strong +29% interview lift
Without
With
+28.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
48 currently pending
Career history
1684
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
37.2%
-2.8% vs TC avg
§102
30.5%
-9.5% vs TC avg
§112
28.4%
-11.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1636 resolved cases

Office Action

§102
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 § 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 4 and 5 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by McIntosh (US 2,075,952). McIntosh discloses an expansion anchor comprising: an anchor bolt (40); an expansion sleeve (20) around the bolt; a wedge body (30) in a front region of the anchor bolt for expanding the sleeve; the expansion sleeve has a front face facing the wedge body and an expansion slit (23) originating at the front face of the expansion sleeve; the slit including a stem and an adjoining head (24) which is wider than the stem; the stem being located between the head and the front face; the head is off center relative to the stem (Fig. 9 and 10); and the head is elongated perpendicular to the stem. PNG media_image1.png 350 380 media_image1.png Greyscale PNG media_image2.png 372 410 media_image2.png Greyscale Allowable Subject Matter Claim 6 is 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. Hoppe (US 6,676,348) teaches another example of a slit with an off-center stem and head. The additional references cited are to general interest teaching other head shapes. Any inquiry concerning this communication or earlier communications from the examiner should be directed to FLEMMING SAETHER whose telephone number is (571)272-7071. The examiner can normally be reached M-F 8:30 - 7:00 eastern. 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, Christine Mills can be reached at 571-272-8322. 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. /FLEMMING SAETHER/Primary Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Sep 28, 2023
Application Filed
Jan 24, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601366
FLUID TIGHT BLIND FASTENERS AND METHODS FOR FASTENING
2y 5m to grant Granted Apr 14, 2026
Patent 12595818
One Sided Access for Blade Pin
2y 5m to grant Granted Apr 07, 2026
Patent 12584511
LOCKING DEVICE
2y 5m to grant Granted Mar 24, 2026
Patent 12571482
POLYCRYSTALLINE DIAMOND ASSEMBLIES WITH CAST MOUNTING ELEMENTS
2y 5m to grant Granted Mar 10, 2026
Patent 12565301
COUPLING DEVICE FOR A CONNECTING ROD
2y 5m to grant Granted Mar 03, 2026
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
65%
Grant Probability
94%
With Interview (+28.9%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 1636 resolved cases by this examiner. Grant probability derived from career allow rate.

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