Prosecution Insights
Last updated: August 15, 2026
Application No. 18/799,775

ADJUSTABLE FOAM-PENETRATING NAIL GUN WITH TIP LOCKING MECHANISM

Non-Final OA §103§112
Filed
Aug 09, 2024
Priority
Dec 16, 2023 — provisional 63/611,126 +3 more
Examiner
MARTIN, VERONICA
Art Unit
3731
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Louisiana-Pacific Corporation
OA Round
3 (Non-Final)
82%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
315 granted / 382 resolved
+12.5% vs TC avg
Moderate +14% lift
Without
With
+13.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
23 currently pending
Career history
412
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
45.4%
+5.4% vs TC avg
§102
25.8%
-14.2% vs TC avg
§112
26.6%
-13.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 382 resolved cases

Office Action

§103 §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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 04/22/2026 has been entered. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 9-11 and 14 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Regarding claim 9, “wherein the first end of the tip sheath is configured to contact the outer face of the foam layer without penetrating the foam layer during operation of the nail gun” fails to comply with the written description requirement because the specification does not support the limitation. The drawings and specification do not disclose the first end of the tip sheath contacts but does not penetrate the foam layer. Regarding claims 10-11 and 14, claims 10-11 and 14 are rejected because they depend from rejected claim 9. 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. Claims 1-8 and 10-13 are 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. Regarding claim 1, “the distal end of the insertion driver moves from a position within the nail gun body . . . during operation of the nail gun” and “wherein the distal end distance is a fixed distance during operation of the nail gun” is indefinite because it is unclear how the distal end can move from a position within the nail gun body during operation of the nail gun while also the distal end distance being a fixed distance during operation of the nail gun. For examination purposes, claim 1 is being interpreted to mean “the distal end of the insertion driver moves from a position within the nail gun body . . . before operation of the nail gun”. Regarding claim 3, “the distal end distance is continuously adjustable” is indefinite because it is unclear how the distance can be continuously adjustable when claim 1 recites the distal end distance is fixed during operation of the nail, such that the distance is not continuously adjustable. For examination purposes, “the distal end distance is continuously adjustable” is being interpreted to mean “the distal end distance is continuously adjustable before operation of the nail gun”. Regarding claims 2, 4-8, and 10, claims 2, 4-8, and 10 are rejected because they depend from rejected claim 1. Regarding claim 11, “the tip” lacks antecedent basis. Additionally, “the distal end of the insertion driver moves from a position within the nail gun body . . . during operation of the nail gun” and “wherein the distal end distance is a fixed distance during operation of the nail gun” is indefinite because it is unclear how the distal end can move from a position within the nail gun body during operation of the nail gun while also the distal end distance being a fixed distance during operation of the nail gun. For examination purposes, claim 1 is being interpreted to mean “the distal end of the insertion driver moves from a position within the nail gun body . . . before operation of the nail gun”. Regarding claim 12-13, claims 12-13 are rejected because they depend from rejected claim 11. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-8 and 10 are rejected under 35 U.S.C. 103 as being unpatentable over Liu et al (US 2018/0326567), hereinafter Liu, in view of Peng et al (US 2020/0398414), hereinafter Peng, further in view of Panasik et al (US 2006/0043140), hereinafter Panasik, further in view of Taylor et al (US 2005/0189390), hereinafter Taylor. Regarding claim 1, Liu discloses a nail gun (Fig. 2) for installing panels with foam or other attachable materials, comprising: a nailgun body (Fig. 2, item 2) with a front end (Fig. 2) from which a nail or other fastener (Para. 0022) is ejected the trigger is pulled (Para. 0022); a tip (Fig. 2, item 4, 23) with a front end and a back end, said back end mounted on the front end of the nail gun body (Fig. 2), the tip comprising a tip sheath (Fig. 2, item 4, 23) with a first end (Fig. 2, sheath 23 has a first end), a second end (Fig. 2, sheath 23 has a second end), and an interior (Fig. 2, interior runs along axis X) with a channel or hole extending from the second end to the first end (Fig. 2) (Para. 0023-0029), wherein the second end of the tip sheath is attached to the front end of said nail gun body (Para. 0023-0029); and wherein an insertion driver (Fig. 2, item 3, 31) (Para. 0023-0029) extends from the nail gun body through the channel (Fig. 2) (Para. 0023-0029) or hole in the tip sheath (Fig. 2) (Para. 0023-0029) such that the distal end of the insertion driver moves from a position within the nail gun body (Para. 0023-0029, Fig. 8-9, insertion driver moves from within body to extend further from the body when the insertion driver depth is adjusted) and extends a distal end distance (Para. 0023-0029) to a point beyond the first end of the tip sheath (Fig. 2-3, insertion driver 31 extends beyond end of sheath 23) (Para. 0023-0029) during operation of the nail gun (Fig. 2-3); wherein the distal end distance is adjustable (Para. 0030-0035) and is set at a fixed distance during operation of the nailgun (Para. 0030-0035, distal end distance is fixed during operation because the distal end distance does not move during the process of firing the nail). Liu does not expressly disclose the nail gun body has a handle, a trigger, a magazine for holding nails or other fasteners, and a driver mechanism, wherein the driver mechanism is configured to drive a nail or other fastener from the magazine through the insertion driver and out the distal end of the insertion driver when the trigger is pulled. However, Peng teaches a nail gun (Peng, Fig. 1, item 10) body (Peng, Fig. 1, item 10, 12, 22, 28, 16) having a handle (Peng, Fig. 1, item 22), a trigger (Peng, Fig. 1, item 28), a magazine (Peng, Fig. 1, item 16) for holding nails or other fasteners (Peng, Para. 0037), and a driver mechanism (Peng, Para. 0009), wherein the driver mechanism is configured to drive a nail (Peng, Para. 0009) or other fastener from the magazine when the trigger is pulled (Peng, Para. 0009). It would have been obvious to a person of ordinary skill in the art at the effective filing date of the invention having the teachings of Liu and Peng to modify the nail gun of Liu to include the handle, trigger, and magazine of Peng. A person of ordinary skill in the art would have been motivated to make such change in order to provide a tool which is capable of driving a fastener to a required depth into materials of different hardnesses (Peng, Para. 0007). Liu in view of Peng is silent about the driver mechanism comprising a hollow insertion driver with a distal end and a proximal end. However, Panasik teaches a driver mechanism (Panasik, Fig. 1, item 30, 32, 40, 42) comprising a hollow insertion driver (Panasik, Fig. 1, item 40, 42, item 17) (Panasik, Para. 0017) with a distal end and a proximal end (Panasik, Para. 0017), wherein the driver mechanism is configured to drive a nail (Panasik, Para. 0017) or other fastener from the magazine with the insertion driver (Panasik, Para. 0017) and the distal end of the insertion driver when the trigger is pulled (Panasik, Para. 0017). It would have been obvious to a person of ordinary skill in the art at the effective filing date of the invention having the teaches of Liu, Peng, and Panasik to modify the driver mechanism of Liu in view of Peng to include the hollow insertion driver of Panasik. A person of ordinary skill in the art would have been motivated to make such change in order to obtain a lighterweight driving component without sacrificing the strength of the driving component (Panasik, Para. 0017). Liu in view of Peng in view of Panasik is silent about the nail gun having a locking arm extending from the tip sheath and configured to releasably engage a spring-clip lock on the nailgun body, wherein the spring-clip lock when engaged hold the tip sheath in a fixed position, and the tip sheath is removable when the spring-clip lock is released. However, Taylor teaches a nail gun (Taylor, Fig. 1, item 12) having a locking arm (Taylor, Fig. 3, item 28) extending laterally (Taylor, Fig. 3, locking arm 28 extends in a lateral direction) from a tip (Taylor, Fig. 3, item 26) with a distal end of the locking arm configured to releasably engage a spring-clip lock (Taylor, Fig. 3, item 34) on the nailgun body (Taylor, Para. 0031-0034), wherein the spring-clip lock when engaged (Taylor, Para. 0031-0034) holds the tip in a fixed position (Taylor, Para. 0031-0034) on an insertion driver, and the tip is removable when the spring-clip lock is released (Taylor, Para. 0031-0034) by pressure applied to a release button (Taylor, Fig. 3, item 72) on the locking arm (Taylor, Para. 0031-0034). It would have been obvious to a person of ordinary skill in the art at the effective filing date of the invention having the teachings of Liu, Peng, Panasik, and Taylor to modify the nail gun of Liu in view of Peng in view of Panasik to include the locking arm of Taylor. A person of ordinary skill in the art would have been motivated to make such change in order to allow the user to replace the depth adjustment mechanism of the tool when needed without needed to replace the entire tool (Taylor, Para. 0012). Regarding claim 2, Liu discloses the nail gun of claim 1, wherein the distal end distance is adjustable in fixed increments (Para. 0030-0035). Regarding claim 3, Liu discloses the nail gun of claim 1, wherein the distal end distance is continuously adjustable within a fixed range (Para. 0030-0035). Regarding claim 4, Liu discloses the nail gun of claim 1, wherein the distal end distance is adjustable by movement (Para. 0030-0035, operating member 44 is slides to adjust the movement of insertion driver) of the tip sheath with respect to the insertion driver (Para. 0030-0035). Regarding claim 5, Liu discloses the nail gun of claim 1, wherein the tip sheath sliding (Para. 0023-0029) moves linearly along a guide rail (Fig. 2, item 424) with stop at preset thicknesses (Para. 0023-0029). Regarding claim 6, Liu discloses the nail gun of claim 1, wherein the tip sheath is removably attached to the nailgun body (Claim 2, positioning assembly is removable). Regarding claim 7, Liu discloses the nail gun of claim 1, wherein the first end of the tip sheath is planar (Fig. 2, first end of tip sheath 23 is flat). Regarding claim 8, Liu in view of Peng further in view of Taylor does not expressly disclose the nail gun of claim 1, wherein the first end of the tip sheath is knurled or textured. However, it would have been obvious to one having ordinary skill in the art at the time the invention was made to form the material of the tip sheath with knurled or textured material, since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 125 USPQ 416. See also Ballas Liquidating Co. v. Allied industries of Kansas, Inc. (DC Kans) 205 USPQ 331. Regarding claim 10, as combined above, Taylor teaches the nail gun of claim 1, further comprising pads (Taylor, Para. 0034) that removably attach to the front end of the adjustable sheath (Taylor, Para. 0034). Liu in view of Peng further in view of Taylor does not expressly disclose the pads are a plurality of ring-shaped pads. However, it would have been an obvious matter of design choice to make the different portions of the pads of whatever form or shape was desired or expedient. A change in form or shape is generally recognized as being within the level of ordinary skill in the art, absent any showing of unexpected results. In re Dailey et al., 149 USPQ 47. Response to Arguments Applicant’s arguments, see pages 13-14, filed 04/22/2026, with respect to the 35 USC 103 rejection of claims 9-11 and 14 have been fully considered and are persuasive, as Applicant has amended the claims to overcome the rejection. The 35 USC 103 rejection of claims 9-11 and 14 has been withdrawn. Applicant's arguments filed 04/22/2026 have been fully considered but they are not persuasive for the following reasons: Regarding Applicant’s argument that Liu does not teach an insertion driver (see pages 11-12 of Applicant’s argument), Examiner disagrees. Applicant asserts that because the item 3, 31 identified as an insertion driver is called a safety unit in Liu, the item 3, 31 cannot be an insertion driver. However, under broadest reasonable interpretation, the item 3, 31 of Liu can be inserted into the nose of the nail gun and is used to drive the nails into the workpiece. Thus, the item 3, 31 can be reasonably interpreted to be “an insertion driver”. Examiner recommends incorporating further description in the claim to define the insertion driver. Therefore, the rejection is maintained. Prior Art Rejection Claims 11-13 are currently free from prior art, however, a subsequent prior art rejection may be made in view of Applicant’s amendments submitted to overcome the above 35 USC 112(a) and 112(b) rejections. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VERONICA MARTIN whose telephone number is (571)272-3541. The examiner can normally be reached Monday-Thursday 8:00-6:00. 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, Anna Kinsaul can be reached at (571)270-1926. 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. /VERONICA MARTIN/Primary Examiner, Art Unit 3731
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Prosecution Timeline

Aug 09, 2024
Application Filed
Oct 02, 2025
Non-Final Rejection mailed — §103, §112
Dec 01, 2025
Response Filed
Dec 23, 2025
Final Rejection mailed — §103, §112
Apr 22, 2026
Request for Continued Examination
Apr 28, 2026
Response after Non-Final Action
Jun 18, 2026
Non-Final Rejection mailed — §103, §112 (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

3-4
Expected OA Rounds
82%
Grant Probability
96%
With Interview (+13.8%)
2y 4m (~4m remaining)
Median Time to Grant
High
PTA Risk
Based on 382 resolved cases by this examiner. Grant probability derived from career allowance rate.

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