Prosecution Insights
Last updated: July 17, 2026
Application No. 18/575,607

OPENING/CLOSING AND LOCKING MECHANICAL STRUCTURE FOR CENTRIFUGE BIN LID

Non-Final OA §103
Filed
Dec 29, 2023
Priority
Jul 01, 2021 — CN 202110746388.X +1 more
Examiner
COOLEY, CHARLES E
Art Unit
Tech Center
Assignee
Scinomed(Shanghai)Bio-Tech Co. Ltd.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
1186 granted / 1500 resolved
+19.1% vs TC avg
Moderate +15% lift
Without
With
+15.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
42 currently pending
Career history
1538
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
45.8%
+5.8% vs TC avg
§102
14.2%
-25.8% vs TC avg
§112
23.6%
-16.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1500 resolved cases

Office Action

§103
OFFICE ACTION This application has been assigned or remains assigned to Technology Center 1700, Art Unit 1774 and the following will apply for this application: Please direct all written correspondence with the correct application serial number for this application to Art Unit 1774. Telephone inquiries regarding this application should be directed to the Electronic Business Center (EBC) at http://www.uspto.gov/ebc/index.html or 1-866-217-9197 or to the Examiner at (571) 272-1139. All official facsimiles should be transmitted to the centralized fax receiving number (571)-273-8300. 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 . Priority Acknowledgment is made of a claim for foreign priority under 35 U.S.C. § 119(a)-(d). All of the CERTIFIED copies of the priority documents have been received in this national stage application from the International Bureau (PCT Rule 17.2(a)). Information Disclosure Statement Note the attached PTO-1449 form submitted with the Information Disclosure Statement filed 17 APR 2024. Drawings The replacement sheets of drawings filed on 29 DEC 2023 are approved by the examiner. Specification The specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant's cooperation is requested in correcting any errors of which applicant may become aware in the specification. The substitute abstract is acceptable. The title as filed is acceptable. Claim Rejections - 35 USC § 103 The terms used in this respect are given their broadest reasonable interpretation in their ordinary usage in context as they would be understood by one of ordinary skill in the art, in light of the written description in the specification, including the drawings, without reading into the claim any disclosed limitation or particular embodiment. See, e.g., In re Am. Acad. of Sci. Tech. Ctr., 367 F.3d 1359, 1364 (Fed. Cir. 2004); In re Hyatt, 211 F.3d 1367, 1372 (Fed. Cir. 2000); In re Morris, 127 F.3d 1048, 1054-55 (Fed. Cir. 1997); In re Zletz, 893 F.2d 319, 321-22 (Fed. Cir. 1989). The Examiner interprets claims as broadly as reasonable in view of the specification, but does not read limitations from the specification into a claim. Elekta Instr. S.A.v.O.U.R. Sci. Int'l, Inc., 214 F.3d 1302, 1307 (Fed. Cir. 2000). To determine whether subject matter would have been obvious, "the scope and content of the prior art are to be determined; differences between the prior art and the claims at issue are to be ascertained; and the level of ordinary skill in the pertinent art resolved .... Such secondary considerations as commercial success, long felt but unsolved needs, failure of others, etc., might be utilized to give light to the circumstances surrounding the origin of the subject matter sought to be patented." Graham v. John Deere Co. of Kansas City, 383 U.S. 1, 17-18 (1966). The Supreme Court has noted: Often, it will be necessary for a court to look to interrelated teachings of multiple patents; the effects of demands known to the design community or present in the marketplace; and the background knowledge possessed by a person having ordinary skill in the art, all in order to determine whether there was an apparent reason to combine the known elements in the fashion claimed by the patent at issue. KSR Int'l Co. v. Teleflex Inc., 127 S.Ct. 1727, 1740-41 (2007). "Under the correct analysis, any need or problem known in the field of endeavor at the time of invention and addressed by the patent can provide a reason for combining the elements in the manner claimed." (Id. at 1742). 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 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 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 instant office action conforms to the policies articulated in the Federal Register notice titled “Updated Guidance for Making a Proper Determination of Obviousness” at 89 Fed. Reg. 14449, February 27, 2024, wherein the Supreme Court’s directive to employ a flexible approach to understanding the scope of prior art is reflected in the frequently quoted sentence, ‘‘A person of ordinary skill is also a person of ordinary creativity, not an automaton.’’ Id. at 421, 127 S. Ct. at 1742. In this section of the KSR decision, the Supreme Court instructed the Federal Circuit that persons having ordinary skill in the art (PHOSITAs) also have common sense, which may be used to glean suggestions from the prior art that go beyond the primary purpose for which that prior art was produced. Id. at 421–22, 127 S. Ct. at 1742. Thus, the Supreme Court taught that a proper understanding of the prior art extends to all that the art reasonably suggests, and is not limited to its articulated teachings regarding how to solve the particular technological problem with which the art was primarily concerned. Id. at 418, 127 S. Ct. at 1741 (‘‘As our precedents make clear, however, the analysis need not seek out precise teachings directed to the specific subject matter of the challenged claim, for a court can take account of the inferences and creative steps that a person of ordinary skill in the art would employ.’’). ‘‘The obviousness analysis cannot be confined . . . by overemphasis on the importance of published articles and the explicit content of issued patents.’’ Id. at 419, 127 S. Ct. at 1741. Federal Circuit case law since KSR follows the mandate of the Supreme Court to understand the prior art— including combinations of the prior art—in a flexible manner that credits the common sense and common knowledge of a PHOSITA. The Federal Circuit has made it clear that a narrow or rigid reading of prior art that does not recognize reasonable inferences that a PHOSITA would have drawn is inappropriate. An argument that the prior art lacks a specific teaching will not be sufficient to overcome an obviousness rejection when the allegedly missing teaching would have been understood by a PHOSITA—by way of common sense, common knowledge generally, or common knowledge in the relevant art. For example, in Randall Mfg. v. Rea, 733 F.3d 1355 (Fed. Cir. 2013), the Federal Circuit vacated a determination of nonobviousness by the Patent Trial and Appeal Board (PTAB or Board) because it had not properly considered a PHOSITA’s perspective on the prior art. Id. at 1364. The Randall court recalled KSR’s criticism of an overly rigid approach to obviousness that has ‘‘little recourse to the knowledge, creativity, and common sense that an ordinarily skilled artisan would have brought to bear when considering combinations or modifications.’’ Id. at 1362, citing KSR, 550 U.S. at 415–22, 127 S. Ct. at 1727. In reaching its decision to vacate, the Federal Circuit stated that by ignoring evidence showing ‘‘the knowledge and perspective of one of ordinary skill in the art, the Board failed to account for critical background information that could easily explain why an ordinarily skilled artisan would have been motivated to combine or modify the cited references to arrive at the claimed inventions.’’ Id. From Norgren Inc. v. Int’l Trade Comm’n, 699 F.3d 1317, 1322 (Fed. Cir. 2012) (‘‘A flexible teaching, suggestion, or motivation test can be useful to prevent hindsight when determining whether a combination of elements known in the art would have been obvious.’’); Outdry Techs. Corp. v. Geox S.p.A., 859 F.3d 1364, 1370–71 (Fed. Cir. 2017) (‘‘Any motivation to combine references, whether articulated in the references themselves or supported by evidence of the knowledge of a skilled artisan, is sufficient to combine those references to arrive at the claimed process.’’). In keeping with this flexible approach to providing a rationale for obviousness, the Federal Circuit has echoed KSR in identifying numerous possible sources that may, either implicitly or explicitly, provide reasons to combine or modify the prior art to determine that a claimed invention would have been obvious. These include ‘‘market forces; design incentives; the ‘interrelated teachings of multiple patents’; ‘any need or problem known in the field of endeavor at the time of invention and addressed by the patent’; and the background knowledge, creativity, and common sense of the person of ordinary skill.’’ Plantronics, Inc. v. Aliph, Inc., 724 F.3d 1343, 1354 (Fed. Cir. 2013), quoting KSR, 550 U.S. at 418–21, 127 S. Ct. at 1741–42. The Federal Circuit has also clarified that a proposed reason to combine the teachings of prior art disclosures may be proper, even when the problem addressed by the combination might have been more advantageously addressed in another way. PAR Pharm., Inc. v. TWI Pharms., Inc., 773 F.3d 1186, 1197–98 (Fed. Cir. 2014) (‘‘Our precedent, however, does not require that the motivation be the best option, only that it be a suitable option from which the prior art did not teach away.’’) (emphasis in original). One aspect of the flexible approach to explaining a reason to modify the prior art is demonstrated in the Federal Circuit’s decision in Intel Corp. v. Qualcomm Inc., 21 F.4th 784, 796 (Fed. Cir. 2021), which confirms that a proposed reason is not insufficient simply because it has broad applicability. Patent challenger Intel had argued in an inter partes review before the Board that some of Qualcomm’s claims were unpatentable because a PHOSITA would have been able to modify the prior art, with a reasonable expectation of success, for the purpose of increasing energy efficiency. Id. at 796–97. The Federal Circuit explained that ‘‘[s]uch a rationale is not inherently suspect merely because it’s generic in the sense of having broad applicability or appeal.’’ Id. The Federal Circuit further pointed out its pre-KSR holding ‘‘that because such improvements are ‘technology independent,’ ‘universal,’ and ‘even common-sensical,’ ‘there exists in these situations a motivation to combine prior art references even absent any hint of suggestion in the references themselves.’ ’’ Id., quoting DyStar Textilfarben GmbH v. C.H. Patrick Co., 464 F.3d 1356, 1368 (Fed. Cir. 2006) (emphasis added by the Federal Circuit in Intel). When formulating an obviousness rejection, the PTO may use any clearly articulated line of reasoning that would have allowed a PHOSITA to draw the conclusion that a claimed invention would have been obvious in view of the facts. MPEP 2143, subsection I, and MPEP 2144. Acknowledging that, in view of KSR, there are ‘‘many potential rationales that could make a modification or combination of prior art references obvious to a skilled artisan,’’ the Federal Circuit has also pointed to MPEP 2143, which provides several examples of rationales gleaned from KSR. Unwired Planet, 841 F.3d at 1003. When considering the prior art in its entirety, note Allied Erecting v. Genesis Attachments, 825 F.3d 1373, 1381, 119 USPQ2d 1132, 1138 (Fed. Cir. 2016) ("Although modification of the movable blades may impede the quick change functionality disclosed by Caterpillar, ‘[a] given course of action often has simultaneous advantages and disadvantages, and this does not necessarily obviate motivation to combine.’" (quoting Medichem, S.A. v. Rolabo, S.L., 437 F.3d 1157, 1165, 77 USPQ2d 1865, 1870 (Fed Cir. 2006) (citation omitted))). However, "the prior art’s mere disclosure of more than one alternative does not constitute a teaching away from any of these alternatives because such disclosure does not criticize, discredit, or otherwise discourage the solution claimed…." In re Fulton, 391 F.3d 1195, 1201, 73 USPQ2d 1141, 1146 (Fed. Cir. 2004). In view of the guidance above, claims 1-6 are rejected under 35 U.S.C. 103 as being unpatentable over CN 207615033 U that discloses, as seen in Figures 1-4 reproduced below without editing: a centrifuge chamber lid structure 3, wherein the centrifuge chamber lid structure 3 is provided upon a centrifuge chamber or bin 1, and the centrifuge chamber lid structure 3 comprises a hinge assembly 2, a chamber lid assembly 3, and a lid lock assembly 4. The hinge assembly 2 is provided with pin shafts 20 allowing for movement of the chamber lid assembly 3. The hinge assembly 2 comprises a lid opening linking plate 13, the lid opening linking plate 13 is provided with a hinge shaft 12, two ends of the hinge shaft 12 are fixed onto the lid opening linking plate 13 by means of shoulder bushings 14, and the hinge shaft 12 is provided with a lug seat 11. Damping spacers 15 are provided on the pin shafts 20. The chamber lid assembly 3 is provided with bushings 16, the bushings 16 are connected to the pin shafts 20, each bushing 16 is provided with a compression nut 17, an anti-loosening spacer 19, and an anti-loosening circlip 18, and a protective chamber 24 is provided at the lower ends of the pin shafts 20. A torsion spring 22 is provided on one side of the pin shafts 20, and a torsion spring screw 23 is provided below the torsion spring 22. The shoulder bushings are installed into shaft holes in the lid opening linking plate, the lid opening linking plate 13 is connected to the lug 11 by means of the hinge shaft 12, both ends of the hinge shaft 12 are fixed onto the lid opening linking plate 13 by means of the shoulder bushings 14, and upper and lower damping spacers 15, the compression nut 17, the anti-loosening spacer 19, and the anti-loosening circlip 18 are mounted on each chamber lid bushing 16. The protective cover is mounted on the compression nuts. The chamber lid assembly comprises a pair of chamber lid frameworks 30, a pair of glass lid cover plates 31, a pair of rubber clamping engagement rings 33, and a pair of locking clamping slots 32, wherein the organic glass lid plates 31 are high-strength transparent organic glass plates and are assembled on the chamber lid frames 30, a circular clamping ring is designed at the center of the chamber lid frames 30 and the rubber clamping rings are further assembled, a rotating shaft hole is designed at one end of each chamber lid frame, the locking clamping slot is assembled at the other end of each chamber lid frame, and the lid lock assembly 4 is connected to the chamber lid assembly 3 by means of the locking clamping slots 32. The lid lock assembly 4 comprises a lid lock handle 35, clamping tongues 39 of the lid lock handle 35 limit and lock the chamber lid assembly 3 by means of the locking clamping slots 32, a lid locking copper sleeve 37 is provided at the lower end of the lid lock handle 35, a locking rod bushing 38 is provided between the lid lock handle 35 and the lid locking copper sleeve 37, and a spring 36 is provided at the outer side of the locking rod bushing 38. After the chamber lid is closed, the clamping tongues of the lid lock assembly press against the locking clamping slots of the chamber lid assembly. Figure 1 discloses that: the hinge assembly 2 and the lid lock assembly 4 are respectively arranged at two ends of the chamber lid assembly 3. Figures 2a and 2b disclose that the torsion spring is sleeved outside the torsion spring screw, and both ends of the torsion spring are tilted. Figure 3 discloses that: a notch for placing the hinge assembly is formed at the other ends of the two symmetrically arranged chamber lid frames, and said other ends of the two chamber lid frames are connected in a meshing mode. CN ‘033 does not disclose the cross-section of a bin lid assembly is equal to the cross section of a centrifuge bin/chamber. With regard to the recited size of the of the bin lid assembly being equal to the cross section of a centrifuge bin/chamber, the Federal Circuit has held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device. In Gardner v. TEC Systems, Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 USPQ 232 (1984). Thus, for one skilled in the art to form the bin lid assembly to be equal to the cross section of the centrifuge bin/chamber in CN ‘033 to meet operational requirements or size limitations would be well within the realm of obviousness. PNG media_image1.png 235 763 media_image1.png Greyscale PNG media_image2.png 595 714 media_image2.png Greyscale PNG media_image3.png 550 751 media_image3.png Greyscale PNG media_image4.png 550 634 media_image4.png Greyscale PNG media_image5.png 576 778 media_image5.png Greyscale PNG media_image6.png 567 703 media_image6.png Greyscale Allowable Subject Matter No claims stand allowed. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The cited prior art discloses centrifuge receptacle closures or lids. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHARLES COOLEY whose telephone number is (571) 272-1139. The examiner can normally be reached M-F 9:30 AM - 6:00 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. New USPTO policy limits time for interviews to one per new application or RCE (utility), when during prosecution, the examiner conducts an interview. More than one interview and additional time will only be granted if it is ensured “that the interviews are being used to advance prosecution”. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, CLAIRE X. WANG can be reached at 571-272-1700. 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. /CHARLES COOLEY/ Examiner, Art Unit 1774 DATED: 17 JUNE 2026
Read full office action

Prosecution Timeline

Dec 29, 2023
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

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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
79%
Grant Probability
94%
With Interview (+15.0%)
2y 10m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1500 resolved cases by this examiner. Grant probability derived from career allowance rate.

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