Prosecution Insights
Last updated: July 17, 2026
Application No. 18/720,821

LIFE PRESERVER

Non-Final OA §102§103§112
Filed
Jun 17, 2024
Priority
Dec 17, 2021 — GB 2118375.1 +1 more
Examiner
CHAN, KEVIN
Art Unit
3615
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Survitec Group Limited
OA Round
1 (Non-Final)
Grant Probability
Favorable
1-2
OA Rounds

Examiner Intelligence

Grants only 0% of cases
0%
Career Allowance Rate
0 granted / 0 resolved
-52.0% vs TC avg
Minimal +0% lift
Without
With
+0.0%
Interview Lift
resolved cases with interview
Typical timeline
Avg Prosecution
6 currently pending
Career history
4
Total Applications
across all art units

Statute-Specific Performance

§103
100.0%
+60.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 0 resolved cases

Office Action

§102 §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 . 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. Claim 11 is rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor , regards as the invention because the phrase “ and that is moved by inflation of the first inflatable volume” lacks clear antecedent basis and renders unclear whether the trigger mechanism, the cable, or both are moved by inflation of the fist inflatable volume. 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. Claim(s) 13-14 are rejected under 35 U.S.C. 102(a)1 as being anticipated by Maechler (US-20150307171-A1). With respect to claim 13, Maechler teaches: A method of operating a life preserver having one or more torso portions configured to extend over a front of a wearer' s torso in use (see Fig.1, 2a, 2b), a neck portion configured to extend behind the wearer' s neck in use(see Fig.1, 3), a first inflatable volume configured to provide buoyancy primarily to the one or more torso portions when inflated(see Fig. 1, 4,5,6,7), and a second inflatable volume configured to provide buoyancy to the neck portion when inflated (see Fig. 1,8), the method including controlling inflation of the first inflatable volume and the second inflatable volume such that the second inflatable volume begins inflation after the first inflatable volume(see Fig. 1, 10,13;paragraphs 44-48, 80). PNG media_image1.png 351 462 media_image1.png Greyscale With respect to claim 14, Maechler teaches: A method of operating a life preserver having one or more torso portions configured to extend over a front of a wearer' s torso in use and a neck portion configured to extend behind the wearer' s neck in use (see Fig. 1,2a, 2b,3), the method including inflating a first inflatable volume to provide buoyancy primarily to the one or more torso portions to rotate a wearer from a face-down position to a face-up position on water(see Fig .1,4,5,6,7), and subsequently inflating a second inflatable volume configured to provide buoyancy to the neck portion to increase the distance of the wearer' s mouth from the water surface and/or to vary a face plane angle of the wearer(see Fig. 1, 8;paragraphs 44-46,79). 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. Claim(s) 1-9, 12 are rejected under 35 U.S.C. 103 as being unpatentable over Griffin et al. (US-20190077490-A1, hereafter Griffin) in view of Maechler. With respect to claim 1, Griffin teaches a life preserver comprising: one or more torso portions configured to extend over a front of a wearer's torso in use (see Fig.1,7,9); a neck portion configured to extend behind the wearer' s neck in use (see Fig.1,11); a first inflatable volume configured to provide buoyancy primarily to the one or more torso portions when inflated (see Fig.1,7,9); a second inflatable volume configured to provide buoyancy to the neck portion when inflated(see Fig.1,11) ; PNG media_image2.png 682 762 media_image2.png Greyscale However, Griffin does not teach: an inflation system configured to control inflation of the first inflatable volume and the second inflatable volume such that the second inflatable volume begins inflation after the first inflatable volume. Maechler teaches an inflation system configured to control inflation of the first inflatable volume and the second inflatable volume such that the second inflatable volume begins inflation after the first inflatable volume (see Fig.5,9,41,42;see paragraphs 44-46, 84). PNG media_image3.png 345 548 media_image3.png Greyscale It would have been obvious to one of ordinary skill in the art, at the time of invention’s effective filling date to modify the life jacket of Griffin to include the sequential inflation arrangement as taught by Maechler, such that the second inflatable volume begins inflation after the first inflatable volume, in order to provide controlled inflation of multiple buoyancy chambers and thereby improve the positioning and support of the wearer during flotation. With respect to claim 2, Griffin and Maechler teach the life preserver of claim 1. Griffin also teaches that the one or more torso portions and the neck portion are formed by an outer casing, the first and second inflatable volumes being contained in a chamber defined by the outer casing (see Fig.1,7,9,11). With respect to claim 3, Griffin and Maechler teach the life preserver of claim 2. Griffin also teaches ; The life preserver of claim 2, wherein the outer casing has a top surface and a bottom surface that form the chamber; wherein a baffle 66 is provided that extends between the top surface and the bottom surface, the baffle being configured to divide the chamber into a first region located on a first side of the baffle and a second region located on a second side of the baffle; and wherein the first inflatable volume is in the first region and the second inflatable volume is in the second region (see Fig.7,3A,41A,43A,66) . PNG media_image4.png 694 445 media_image4.png Greyscale With respect to claim 4, Griffin and Maechler teach the life preserver of claim 3. Griffin also teaches the baffle extends obliquely between the top surface and the bottom surface such that the first region and the second region partially overlap one another(see Fig. 7, 66). With respect to claim 5, Griffin and Maechler teach the life preserver of claim 1. Griffin also teaches the life preserver comprising a first inflatable bladder that provides the first inflatable volume and a second inflatable bladder that provides the second inflatable volume(see Fig. 1,41,43). PNG media_image5.png 749 789 media_image5.png Greyscale With respect to claim 6,Griffin and Maechler teach the life preserver of claim 5. Griffin also teaches : wherein the outer casing has a top surface and a bottom surface that form the chamber; wherein a baffle (66) is provided that extends between the top surface and the bottom surface, the baffle being configured to divide the chamber into a first region located on a first side of the baffle and a second region located on a second side of the baffle; wherein the first inflatable volume is in the first region and the second inflatable volume is in the second region; and wherein the baffle is configured to constrain the location of the bladders such that the first bladder in located in the first region and the second bladder is located in the second region (see Fig.7,41A,43A,66). Respect to claim 7, Griffin and Maechler teach the life preserver of claim 6. Griffin also teaches the first bladder and the second bladder are located by the baffle such that they partially overlap one another when inflated (see Fig. 1,41,43) . With respect to claim 8, Griffin and Maechler teach the life preserver of claim 1. Griffin also teaches the inflation system is configured to be automatically triggered by contact with water (see. Fig. 7, 47A,49A;paragraph 54). PNG media_image6.png 697 437 media_image6.png Greyscale With respect to claim 9, Griffin and Maechler teach the life preserver of claim 1. Griffin does not teach wherein the inflation system means includes a first inflator configured to inflate the first inflatable volume and a second inflator configured to inflate the second inflatable volume, the second inflator being arranged such that it is automatically triggered after the first inflator is triggered. Maechler teaches a life jacket having multiple inflatable body portions and a trigger mechanism that (see Fig.1, 10, 13) that causes a second inflator to be activated after a first inflator, thereby providing sequential inflation of separate inflatable volumes. PNG media_image7.png 347 445 media_image7.png Greyscale It would have been obvious to one of ordinary skill in the art, at the time of invention’s effective filling date to modify the life jacket of Griffin to include the first and second inflators and automatic trigger arrangement as taught by Maechler in order to sequentially inflate the first and second inflatable volumes to provide controlled deployment of multiple inflatable body elements. With respect to claim 12, Griffin teaches the life preserver of claim 9, wherein the inflation system is configured to be automatically triggered by contact with water; and wherein only the first inflator is automatically triggered by contact with water (see Fig.4, 40,47). Claim(s) 10-11 are rejected under 35 U.S.C. 103 as being unpatentable over Griffin in view of Maechler and Miller (US-4355987-A). With respect to claim 10, Griffin and Maechler teach the invention as claimed as detailed above with respect to claim 9. Neither Griffin nor Maechler teach that the second inflator is configured to be mechanically triggered by inflation of the first inflatable volume. Miller teaches an actuating system for inflating a dual compartment life raft includes a spaced pair of inflation tanks, each mounted on a different one of the two compartments for relative movement when inflation of the raft is initiated. Miller further teaches pullout cables connected between the tank valves such that inflation of one compartment causes movement of the inflatable structure which mechanically actuates the second tank valve to initiate inflation of the second compartment see (Fig. 2, 20a, 21a,22a, 23a, 26a, 27a,28a,29a). Miller further teaches that partial inflation of the raft moves the tanks further apart, thereby pulling the connected cable from its valve and automatically completing the inflation process. PNG media_image8.png 459 508 media_image8.png Greyscale It would have been obvious to one of ordinary skill in the art, at the time of invention’s effective filling date to modify the life jacket of Griffin as modified by Maechler to include the mechanically actuated secondary inflator arrangement as taught by Miller, in order to utilize the inflation of the first inflatable volume to mechanically actuate the second inflator and thereby simplify the sequential inflation arrangement to improve automatic deployment reliability, and ensure inflation of multiple inflatable volume without requiring separate manual activation. With respect to claim 11, Griffin and Maechler do not teach the life preserver of claim 10, wherein the second inflator includes a trigger mechanism and cable coupled to the first inflatable volume, and that is moved by inflation of the first inflatable volume, the movement of the cable operating the trigger mechanism and triggering operation of the second inflator to inflate the second inflatable volume. Miller teaches uses an actuating system including pullout cables coupled between inflation tank valves of respective inflatable compartments. Miller further teaches that inflation of a first inflatable compartment causes movement of the compartments relative to one another , thereby moving the connected cable and mechanically actuating the second tank valve to initiate inflation of the second inflatable compartment . Miller additionally teaches that partial inflation of the raft moves the tanks further apart, thereby pulling the connected cable from its valve and automatically completing inflation of the second compartment. It would have been obvious to one of ordinary skill in the art, at the time of invention’s effective filling date to modify the life jacket of Griffin as modified by Maechler to include the cable actuated trigger mechanism as taught by Miller, in order to provide reliable sequential inflation of multiple inflatable volumes, improve automatic deployment performance, and reduce the need for separate manual activation of additional inflators. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KEVIN CHAN whose telephone number is (571)270-0117. The examiner can normally be reached 7:30 am-5:00 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, Marc Jimenez can be reached at 571-272-4530. 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. /K.C./Examiner, Art Unit 3615 /MARC BURGESS/Primary Patent Examiner, Art Unit 3615
Read full office action

Prosecution Timeline

Jun 17, 2024
Application Filed
Jun 11, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
Grant Probability
Low
PTA Risk
Based on 0 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month