Prosecution Insights
Last updated: September 17, 2026
Application No. 19/062,004

SYSTEMS, METHODS AND DEVICES FOR PERFORMING ENDOSCOPIC PROCEDURES

Non-Final OA §102§112
Filed
Feb 24, 2025
Priority
Mar 15, 2013 — provisional 61/801,427 +5 more
Examiner
DANG, ANH TIEU
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Endeau Inc.
OA Round
1 (Non-Final)
66%
Grant Probability
Favorable
1-2
OA Rounds
1y 9m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
429 granted / 655 resolved
-4.5% vs TC avg
Strong +36% interview lift
Without
With
+35.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
35 currently pending
Career history
689
Total Applications
across all art units

Statute-Specific Performance

§101
1.9%
-38.1% vs TC avg
§103
44.7%
+4.7% vs TC avg
§102
24.5%
-15.5% vs TC avg
§112
22.0%
-18.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 655 resolved cases

Office Action

§102 §112
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. Claim Rejections - 35 USC § 112 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 15-17 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. Claim 15 recites the limitation "the expandable portion" in line 8-9. There is insufficient antecedent basis for this limitation in the claim since the limitation ‘an expandable portion’ is not introduced until line 10 of the claim. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of pre-AIA 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 – (b) the invention was patented or described in a printed publication in this or a foreign country or in public use or on sale in this country, more than one year prior to the date of application for patent in the United States. Claims 1-17 are rejected under pre-AIA 35 U.S.C. 102(b) as being anticipated by Callas et al (US 7276075). Regarding claim 1, Callas et al (hereafter Callas discloses an endoscopic plug comprising: a base pad (23, 30, 21) located at a proximal end of the endoscopic plug and configured for positioning adjacent a body cavity opening, wherein the base pad is configured to create a seal (21, gas tight seal) between the body cavity opening and an external environment (C:4, L:45-47); a shaft (9) extending from the base pad to a distal end of the endoscopic plug and configured for insertion into a body cavity via the body cavity opening; and an expandable portion (11) positioned at the distal end of the endoscopic plug, wherein the expandable portion is configured to expand into an expanded position to securely seal the plug within a body cavity (figure 2). Regarding claim 2, Callas discloses all of the limitations set forth in claim 1, wherein the expandable portion is configured to collapse into a collapsed position (figure 1) for insertion and removal of the shaft from the body cavity. Regarding claim 3, Callas discloses all of the limitations set forth in claim 1, wherein the expandable portion is an inflatable balloon positioned around an outer circumference of the shaft (figure 2). Regarding claim 4, Callas discloses all of the limitations set forth in claim 1, wherein the shaft includes a scope channel opening (35) for insertion of an endoscopic tool into the body cavity. Regarding claim 5, Callas discloses all of the limitations set forth in claim 4, wherein the scope channel opening includes a seal (21) preventing a fluid or a gas from leaking from the body cavity to the external environment (C:4, L:35-45). Regarding claim 6, Callas discloses all of the limitations set forth in claim 1, wherein the shaft includes an opening (35) to allow passage of a fluid or gas from an external environment to the expandable portion to expand and collapse the expandable portion. Regarding claim 7, Callas discloses all of the limitations set forth in claim 6, wherein the opening is integrated into an outer circumference of the shaft (figure 5). Regarding claim 8, Callas discloses a method of securing an endoscopic plug into a body cavity opening, the method comprising the steps of: inserting a distal end of a shaft of an endoscopic plug through a body cavity opening into a body cavity (hollow body), wherein the distal end of the shaft (9) includes an expandable portion (11) in a collapsed position; positioning a base pad (21) located at a proximal end of the endoscopic plug in an external environment against the body cavity opening (C:5, L:40-41); and expanding the expandable portion into an expanded position within the body cavity to securely seal the endoscopic plug within the body cavity (abstract, C:1, L:45-65). Regarding claim 9, Callas discloses all of the limitations set forth in claim 8, further comprising collapsing the expandable portion into a collapsed position for removal of the shaft from the body cavity (abstract). Regarding claim 10, Callas discloses all of the limitations set forth in claim 8, wherein the expandable portion is an inflatable balloon positioned around an outer circumference of the shaft that is inflated into the expandable position (figure 2). Regarding claim 11, Callas discloses all of the limitations set forth in claim 10, further comprising inflating the inflatable balloon with air (17, air passage). Regarding claim 12, Callas discloses all of the limitations set forth in claim 11, further comprising inflating the inflatable balloon via an opening (20) in the shaft which connects the inflatable balloon with an external environment. Regarding claim 13, Callas discloses all of the limitations set forth in claim 8, wherein the positioning of the base pad against the body cavity opening creates a seal between the body cavity opening and an external environment (C:4, L:30-50; the limitation ‘between the body cavity opening and an external environment’ is sufficiently broad to encompass the seal 21 being between the body cavity opening and an external environment). Regarding claim 14, Callas discloses all of the limitations set forth in claim 9, further comprising inserting an endoscopic tool into the body cavity through a scope channel opening (35) in the shaft (C:2, L:14-29). Regarding claim 15, Callas discloses an endoscopic plug comprising: a base pad (23, 30, 21) located at a proximal end of the endoscopic plug and configured for positioning adjacent a body cavity opening, wherein the base pad is configured to create a seal (21) between the body cavity opening and an external environment(C:4, L:45-47); a shaft (9) extending from the base pad to a distal end of the endoscopic plug and configured for insertion into a body cavity via the body cavity opening, wherein the shaft includes an opening (35, 15) to allow passage of a fluid or gas from an external environment to an expandable portion (11) to expand and collapse the expandable portion; and the expandable portion (11) positioned at the distal end of the endoscopic plug, wherein the expandable portion is configured to expand into an expanded position to securely seal the plug within a body cavity (abstract). Regarding claim 16, Callas discloses all of the limitations set forth in claim 15, wherein the expandable portion is configured to collapse into a collapsed position for insertion and removal of the shaft from the body cavity (figure 1). Regarding claim 17, Callas discloses all of the limitations set forth in claim 15, wherein the expandable portion is an inflatable balloon positioned around an outer circumference of the shaft (figure 2). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANH TIEU DANG whose telephone number is (571)270-3221. The examiner can normally be reached Monday-Thursday (9am-4pm EST). 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, Darwin Erezo can be reached at (571) 272-4695. 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. /ANH T DANG/ Primary Examiner, Art Unit 3771
Read full office action

Prosecution Timeline

Feb 24, 2025
Application Filed
Jun 03, 2026
Non-Final Rejection mailed — §102, §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

1-2
Expected OA Rounds
66%
Grant Probability
99%
With Interview (+35.6%)
3y 4m (~1y 9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 655 resolved cases by this examiner. Grant probability derived from career allowance rate.

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