Prosecution Insights
Last updated: October 24, 2026
Application No. 17/982,904

DUST CANISTER AND ROBOT VACUUM INCLUDING SAME

Non-Final OA §103
Filed
Nov 08, 2022
Priority
May 12, 2020 — RE 10-2020-0056305 +1 more
Examiner
SOTO, CHRISTOPHER ASHLEY
Art Unit
3723
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Samsung Electronics Co., Ltd.
OA Round
5 (Non-Final)
53%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
79%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allowance Rate
71 granted / 133 resolved
-16.6% vs TC avg
Strong +26% interview lift
Without
With
+25.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
40 currently pending
Career history
195
Total Applications
across all art units

Statute-Specific Performance

§103
48.7%
+8.7% vs TC avg
§102
23.7%
-16.3% vs TC avg
§112
25.2%
-14.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 133 resolved cases

Office Action

§103
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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 07/27/2026 has been entered. Status of Claims Claim 1 has been amended. Claim 2 has been canceled. Claims 1, 3-15 have been examined on the merits. Response to Arguments Applicant’s arguments, see Pages 7-11, filed 07/27/2026, with respect to the rejections under 35 U.S.C. 103 have been considered but are moot because the claims have been amended and the new grounds of rejection do not rely on the reference or combination of references applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. 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. Claims 1, 3-5, 7, 9, 10, 12, 14, and 15 are rejected under 35 U.S.C. 103 as being unpatentable over Kim et al. (U.S. Pub. No. 2020/0146521 A1), MATSUMOTO (JP2008200480A), and Amaral et al. (U.S. Pub. No. 2018/0177367A1). Referring to Claim 1: Kim et al. teaches a robot vacuum (shown in Figs. 1-6) comprising: a main body (10 Figs. 1-4) including a suction part (leading lines shown in Fig. 3; Paragraph 0055) configured to suction dust; and a dust canister (100 Figs. 1 and 2), attachable to and detachable (shown in Figs. 1 and 2) from the main body (10 Figs. 1-4), to separate dust (Paragraph 0048) from air suctioned through the suction part and store the separated dust (“store the dust” Paragraph 0048), wherein the dust canister (100 Figs. 1 and 2) includes: a first chamber (110 Figs. 2-5) which is configured to separate dust from air introduced from the suction part (leading lines shown in Fig. 3) and store the separated dust (shown in Figs. 4 and 5), the first chamber (110 Figs. 2-5) including: a first surface (FS Fig. 1-A inserted below) including an inlet (111 Figs. 4-6) through which the dust and the air suctioned through the suction part (leading lines shown in Fig. 3; Paragraph 0055) is introduced into the first chamber (110 Figs. 2-5), and a second surface (2S Fig. 1-A inserted below) opposite the inlet (111 Figs. 4-6) and facing the first surface (FS Fig. 1-A inserted below), the second surface (2S Fig. 1-A inserted below) and the first surface (FS Fig. 1-A inserted below) being side surfaces (shown in Fig. 1-A) of the first chamber (110 Figs. 2-5), and including an inclined surface (IC Fig. 1-A inserted below) configured so that a lower area (LA Fig. 1-A inserted below) of the first chamber (110 Figs. 2-5) is narrower (shown in Fig. 1-A inserted below) than an upper area (UA Fig. 1-A inserted below) of the first chamber (110 Figs. 2-5), and a second chamber (120 Figs. 2, 3, 5, and 6) which includes a cyclone unit (130 Figs. 2, 3, 5, and 6), the second chamber (120 Figs. 2, 3, 5, and 6) being configured to separate dust from air introduced (“second chamber 120 may include a communication hole 121 connecting the first chamber 110” Paragraph 0061) from the first chamber (110 Figs. 2-5) and store the separated dust. But is silent on a dust outlet in a lower surface of the first chamber to discharge dust stored in the first chamber; wherein the first chamber further includes a rib formed along a portion of the second surface including the inclined surface, the rib configured to extend toward the first surface so that the inclined surface is open toward the lower area on either side of the rib, to facilitate discharge of dust along the lower area of the first chamber, an upper side of the rib protrudes further toward the first surface than a lower side of the rib so that a distance between the rib and the first surface is substantially uniform between the upper side of the rib on the second surface and the lower side of the rib on the second surface, the upper side of the rib and the lower side of the rib each terminate on the second surface, and the rib extends upward along the inclined surface from a lower end of the inclined surface. MATSUMOTO in an analogous vacuum cleaner teaches wherein the first chamber (chamber of 19a Fig. 7) further includes a rib (30 Fig. 7) formed along a portion of the second surface (2S-2 Fig. 6-A inserted below) including the inclined surface (IC-2 Fig. 6-A inserted below), the rib (30 Fig. 7) configured to extend toward the first surface (FS-2 Fig. 6-A inserted below) so that the inclined surface (IC-2 Fig. 6-A inserted below) is open toward the lower area (shown in Fig. 3) on either side of the rib (30 Fig. 7), an upper side (US Fig. 6-A inserted below) of the rib (30 Fig. 7) protrudes further toward the first surface (FS-2 Fig. 6-A inserted below) than a lower side (LS Fig. 6-A inserted below) of the rib so that a distance between the rib (30 Fig. 7) and the first surface is substantially uniform between the upper side (US Fig. 6-A inserted below) of the rib on the second surface (2S-2 Fig. 6-A inserted below) and the lower side (LS Fig. 6-A inserted below) of the rib on the second surface (2S-2 Fig. 6-A inserted below), the upper side (US Fig. 6-A inserted below) of the rib and the lower side (LS Fig. 6-A inserted below) of the rib each terminate on the second surface (2S-2 Fig. 6-A inserted below), and the rib (30 Fig. 7) extends upward along the inclined surface (IC-2 Fig. 6-A inserted below) from a lower end of the inclined surface (IC-2 Fig. 6-A inserted below). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the dust chamber of Kim et al. with the rib structure as taught by MATSUMOTO for the purpose of, as it is well known in the art, to direct the air flow flowing into the dust chamber. As a result of Kim et al. being modified with the fins of MATSUMOTO the fins facilitate the discharge of dust along the lower area of the first chamber. Amaral et al. in an analogous robot vacuum (102 Figs. 1 and 2) teaches a dust outlet (dust outlet of 116 Figs. 3B and 5B) in a lower surface (lower surface of 116 which closes with 502) of the similar configuration first chamber (116 Figs. 3B and 5B) to discharge (shown in Figs. 5B and 7-A inserted below)dust stored in the similar configuration first chamber (116 Figs. 3B and 5B). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the dust canister of Kim et al. as modified with the articulating cover as taught by Amaral et al. for the purpose of simplifying the cleaning/ removal of debris. PNG media_image1.png 450 830 media_image1.png Greyscale PNG media_image2.png 558 744 media_image2.png Greyscale Referring to Claim 3: Kim et al. as modified teaches the robot vacuum of claim 1, wherein the cyclone unit (130 Figs. 2, 3, 5, and 6) includes a cyclone separator (131 and 132 Figs. 2, 3, 5, and 6) configured to separate the dust from the air introduced from the first chamber (110 Figs. 2-5) using a centrifugal force of a vortex (“cyclone dust separator,” Paragraph 0006), and the cyclone separator includes: a cyclone inlet (CI Fig. 2-A inserted below) formed by a side surface (SS-B Fig. 2-A inserted below) of the cyclone separator (131 and 132 Figs. 2, 3, 5, and 6) to allow air to enter; a cyclone dust outlet (CDO Fig. 3-A inserted below) formed by a lower surface (LS-1 Fig. 3-A inserted below) of the cyclone separator to allow discharge of dust separated from air introduced through the cyclone inlet (CI Fig. 2-A inserted below): and a cyclone outlet (CO Fig. 3-A inserted below) formed by an upper surface (shown in Fig. 3-A inserted below) of the cyclone separator to allow discharge of the air introduced through the cyclone inlet (CI Fig. 2-A inserted below). PNG media_image3.png 559 485 media_image3.png Greyscale PNG media_image4.png 552 874 media_image4.png Greyscale Referring to Claim 4: Kim et al. as modified teaches the robot vacuum of claim 3 wherein: the cyclone unit (130 Figs. 2, 3, 5, and 6) further includes a cyclone upper cover (UC Fig. 4-A inserted below) on an upper side (shown in Fig. 4-A inserted below) of the cyclone separator (131 and 132 Figs. 2, 3, 5, and 6): and the cyclone upper cover (UC Fig. 4-A inserted below) covers an upper portion (shown in Fig. 4-A inserted below) of an outer side of the cyclone separator (131 and 132 Figs. 2, 3, 5, and 6) in the second chamber (120 Figs. 2, 3, 5, and 6). PNG media_image5.png 544 445 media_image5.png Greyscale Referring to Claim 5: Kim et al. as modified teaches the robot vacuum of claim 4. wherein: the dust canister further includes a cyclone holder (CH Fig. 5-A) coupleable to the cyclone separator (131 and 132 Figs. 2, 3, 5, and 6) so that the cyclone separator is fixed inside (shown Fig. 5-A inserted below) the second chamber (120 Figs. 2, 3, 5, and 6); and while the cyclone holder (CH Fig. 5-A inserted below) is coupled to the cyclone separator (131 and 132 Figs. 2, 3, 5, and 6), the cyclone holder (CH Fig. 5-A inserted below) forms a cyclone chamber (CC chamber which hold the separators Fig. 5-A inserted below) in the second chamber (120 Figs. 2, 3, 5, and 6), together with the cyclone separator (131 and 132 Figs. 2, 3, 5, and 6) and the cyclone upper cover (UC Fig. 4-A inserted above). PNG media_image6.png 520 727 media_image6.png Greyscale Referring to Claim 7: Kim et al. as modified teaches the robot vacuum of claim 5, wherein the cyclone holder (CH Fig. 5-A inserted above) is positioned lower than the cyclone inlet (CI Fig. 2-A inserted above) and higher than the cyclone dust outlet (CDO Fig. 3-A inserted above). Referring to Claim 9: Kim et al. as modified teaches the robot vacuum of claim 5, wherein: the second chamber (120 Figs. 2, 3, 5, and 6) includes a dust chamber (122 Fig. 5) below the cyclone chamber (CC chamber which hold the separators Fig. 5-A inserted above) to store dust discharged through the cyclone dust outlet (CDO Fig. 3-A inserted above); and the dust chamber (122 Fig. 5) and the (CC chamber which hold the separators Fig. 5-A inserted above) are partitioned (partitioned via PC Fig. 5-A inserted above) to be separated from each other. Referring to Claim 10: Kim et al. as modified teaches the robot vacuum of claim 9, but is silent on wherein: the dust outlet is a first dust outlet; the second chamber further includes a second dust outlet in a lower surface of the dust chamber to discharge dust stored in the dust chamber; and the dust canister further includes an outlet cover to allow the first dust outlet and the second dust outlet to simultaneously open or close. Amaral et al. in an analogous robot vacuum (102 Figs. 1 and 2), wherein the dust outlet (dust outlet of 116 Figs. 3B and 5B) is a first dust outlet; the similar configuration second chamber (SC-2 Fig. 7-A inserted below) further includes a second dust outlet (dust outlet of 128 Figs. 3B and 5B) in a lower surface (lower surface of 128 which closes with 502) of the similar configuration dust chamber (128 Figs. 3B and 5B) to discharge (shown in Figs. 5B and 7-A inserted below) dust stored in the dust chamber; and the similar configuration dust canister (100 Figs. 1, 2, 3A, 5A, and 5B) further includes an outlet cover (502 Fig. 5B) to allow the first dust outlet and the second dust outlet (dust outlets of 116 and 128 Figs. 3B and 5B) to simultaneously (shown in Figs. 5B and 7-A inserted below) open or close. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the dust canister of Kim et al. as modified with the articulating cover as taught by Amaral et al. for the purpose of simplifying the cleaning/ removal of debris. PNG media_image7.png 408 600 media_image7.png Greyscale Referring to Claim 12: Kim et al. as modified teaches the robot vacuum of claim 1, wherein: the dust canister (100 Figs. 1 and 2) further includes a grille portion (112 Figs. 2-5; “mesh; perforated plate ” [0060]) between the first chamber (110 Figs. 2-5) and the second chamber (120 Figs. 2, 3, 5, and 6), the grille portion (112 Figs. 2-5; “mesh” [0060]) to filter dust (“separate relatively large dust” [0060]) from air introduced into the first chamber (110 Figs. 2-5); and the grille portion (112 Figs. 2-5) extends from one side surface of the first chamber (110 Figs. 2-5) to (“first filter 112 may be arranged to be inclined within a predetermined angle range with respect to the bottom surface” []0057) an upper surface of the first chamber. Referring to Claim 14: Kim et al. as modified teaches the robot vacuum of claim 1, wherein: the main body (10 Figs. 1-4) includes a pair of wheels (20 Fig. 3) to move the main body and configured to rotate about an axis of rotation (AR Fig. 8-A inserted below); and the dust canister (100 Figs. 1 and 2) is between the pair of wheels (20 Fig. 3) while mounted on the main body (10 Figs. 1-4). PNG media_image8.png 487 512 media_image8.png Greyscale Referring to Claim 15: Kim et al. as modified teaches the robot vacuum of claim 14, wherein the first chamber (110 Figs. 2-5) and the second chamber (120 Figs. 2, 3, 5, and 6) are side by side (shown in Figs. 3 and 8-A inserted above) along a direction in which the axis of rotation (AR Fig. 8-A inserted above) extends. Claim 13 is rejected under 35 U.S.C. 103 as being unpatentable over Kim et al. (U.S. Pub. No. 2020/0146521 A1), MATSUMOTO (JP2008200480A), and Amaral et al. (U.S. Pub. No. 2018/0177367A1), as applied above in claim 12, and in further view of Conrad (U.S. Pub. No. 2010/0212104 A1). Referring to Claim 13: Kim et al. as modified teaches the robot vacuum of claim 12, but is silent on wherein the grille portion includes at least one bent portion to increase a surface area of the grille portion. Conrad in an analogous cyclonic vacuum (10 Figs. 1-3) teaches a similar configuration grille portion (78 Fig. 3) includes at least one bent portion (“curved” [0067]) to increase a surface area (“to increase the surface area of the screen” [0067]) of the grille portion. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the grille portion of Kim et al. as modified with the bent portion as taught by Conrad for the purpose of, as it is known in the art, maximizing the available space and efficiency of the dust catching material. Claim 11 is rejected under 35 U.S.C. 103 as being unpatentable over Kim et al. (U.S. Pub. No. 2020/0146521 A1), MATSUMOTO (JP2008200480A), and Amaral et al. (U.S. Pub. No. 2018/0177367A1), as applied above in claim 4, and in further view of Nam et al. (U.S. Patent No. 10,463,212 B2). Referring to Claim 11: Kim et al. as modified teaches the robot vacuum of claim 4, wherein: the dust canister further includes a filter (140 Fig. 6) to filter dust from air discharged through the cyclone outlet (CO Fig. 3-A inserted below) via the cyclone separator; but is silent on the filter is specifically disposed to face the cyclone upper cover. Nam et al. in an analogous robot vacuum (100 Fig. 1) teaches the similar configuration filter (141F Fig. 21) is specifically disposed to face the similar configuration cyclone upper cover (141d Fig. 21). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify the robot vacuum of Kim et al. as modified with the upper cover facing filter as taught by Nam et al. for the purpose of, as it is known in the art, having and alternate filter configuration which catches the any dust/debris as they leave the cyclone. Allowable Subject Matter Claims 6 and 8 are 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. The following is a statement of reasons for the indication of allowable subject matter: Kim et al. (U.S. Pub. No. 2020/0146521 A1), MATSUMOTO (JP2008200480A), and Amaral et al. (U.S. Pub. No. 2018/0177367A1). Regarding claim 6: Kim et al. as modified teaches the robot vacuum of claim 5, wherein: the dust canister (100 Figs. 1 and 2) further includes a partition (PA Fig. 5-A inserted above) configured to partition the first chamber (110 Figs. 2-5) and the second chamber (120 Figs. 2, 3, 5, and 6) from each other and a protruding portion (PR Fig. 5-A inserted above) formed to protrude from the partition (PA Fig. 5-A inserted above) toward the first chamber (110 Figs. 2-5). But Kim et al., alone or in combination, does not teach, suggest, or make obvious on the protruding portion specifically including a plurality of cyclone holes to allow dust accumulated in the cyclone chamber to be discharged from the cyclone chamber to the first chamber. Protruding portion (PR Fig. 5-A inserted above) specifically including a plurality of cyclone holes to allow dust accumulated in the cyclone chamber (CC chamber which hold the separators Fig. 5-A inserted above) to be discharged from the cyclone chamber (CC) to the first chamber (110 Figs. 2-5). There are no holes which reintroduce dust into the start chamber 110. Such a reconstruction would be extensive and there is no motivation to do so. Thus, one would only arrive at the claimed invention by using improper hindsight reasoning knowledge gleaned only from the Applicant’s disclosure, and such a reconstruction would be improper. PNG media_image6.png 520 727 media_image6.png Greyscale Claim 8 would also be allowable because of its dependency to claim 6. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER SOTO whose telephone number is (571)272-8172. The examiner can normally be reached Monday-Friday, 8a.m. - 5 p.m.. 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, Monica Carter can be reached at 571-272-4475. 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. CHRISTOPHER SOTO Examiner Art Unit 3723 /CHRISTOPHER SOTO/Examiner, Art Unit 3723 /MONICA S CARTER/Supervisory Patent Examiner, Art Unit 3723
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Prosecution Timeline

Show 4 earlier events
Nov 04, 2025
Request for Continued Examination
Nov 13, 2025
Response after Non-Final Action
Nov 20, 2025
Non-Final Rejection mailed — §103
Feb 20, 2026
Response Filed
May 27, 2026
Final Rejection mailed — §103
Jul 27, 2026
Request for Continued Examination
Jul 28, 2026
Response after Non-Final Action
Oct 05, 2026
Non-Final Rejection mailed — §103 (current)

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Prosecution Projections

5-6
Expected OA Rounds
53%
Grant Probability
79%
With Interview (+25.5%)
3y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 133 resolved cases by this examiner. Grant probability derived from career allowance rate.

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