Last updated: May 29, 2026

Application No. 18/628,286

Carbon Firearm Barrel and Related Methods of Manufacturing

Final Rejection

Filed

Apr 05, 2024

Priority

Apr 05, 2023 — provisional 63/457,288 +1 more

Examiner

MORGAN, DERRICK R

Art Unit

3641

Tech Center

3600 — Transportation & Electronic Commerce

Assignee

Grey Birch Mfg

OA Round

2 (Final)

Interview Optional

— +27.8% interview lift. Examiner has a relatively high allowance rate (72%); +27.8% interview lift. A written response may suffice.

Based on 607 resolved cases, 2023–2026

Examiner Intelligence

MORGAN, DERRICK R View full profile →

Grants 72% — above average

Career Allowance Rate

438 granted / 607 resolved

+20.2% vs TC avg

Strong +28% interview lift

Without

With

+27.8%

Interview Lift

resolved cases with interview

Fast prosecutor

1y 10m

Avg Prosecution

26 currently pending

Career history

636

Total Applications

across all art units

Statute-Specific Performance

§103

81.3%

+41.3% vs TC avg

§102

9.2%

-30.8% vs TC avg

§112

4.7%

-35.3% vs TC avg

Black line = Tech Center average estimate • Based on career data from 607 resolved cases

Prosecution Timeline

Apr 05, 2024

Application Filed

Sep 08, 2025

Non-Final Rejection mailed

Mar 05, 2026

Response Filed

May 27, 2026

Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/838,995

Patent 12631422

MAGWELL FOR USE WITH FIREARMS

1y 9m to grant Granted May 19, 2026

19/004,313

Patent 12631411

Pistol Compensator Components, Systems, and Methods

1y 4m to grant Granted May 19, 2026

17/922,852

Patent 12618651

SHORT-RANGE PROJECTILE

3y 6m to grant Granted May 05, 2026

18/744,997

Patent 12607424

Last Round Hold Open

1y 10m to grant Granted Apr 21, 2026

19/032,441

Patent 12607423

TWO PART BEDDING BLOCK FOR A FIREARM

1y 3m to grant Granted Apr 21, 2026

Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.

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Prosecution Projections

3-4

Expected OA Rounds

72%

Grant Probability

99%

With Interview (+27.8%)

1y 10m (~0m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 607 resolved cases by this examiner. Grant probability derived from career allowance rate.