Prosecution Insights
Last updated: July 17, 2026
Application No. 18/766,877

COTTON STRIPPER AIR SUPPLY SYSTEM

Non-Final OA §103
Filed
Jul 09, 2024
Priority
Jul 28, 2023 — provisional 63/516,299 +2 more
Examiner
FABIAN-KOVACS, ARPAD
Art Unit
Tech Center
Assignee
Deere & Company
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1590 granted / 1874 resolved
+24.8% vs TC avg
Minimal +3% lift
Without
With
+3.1%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
25 currently pending
Career history
1881
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
55.2%
+15.2% vs TC avg
§102
37.8%
-2.2% vs TC avg
§112
6.4%
-33.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1874 resolved cases

Office Action

§103
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 . DETAILED ACTION Specification The language should be clear and concise and should not repeat information given in the title. It should avoid using phrases which can be implied, such as, “The disclosure concerns,” “The disclosure defined by this invention,” “The disclosure describes,” etc. In this case “disclosed” should be removed. Claim Objections Claims 16, 17 are objected to under 37 CFR 1.75 as being a substantial duplicate of claims 13, 14. When two claims in an application are duplicates, it is proper after allowing one claim to object to the other as being a substantial duplicate of the allowed claim. See MPEP § 608.01(m). 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) 1-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Thedford (5094064), in view of Minnich et al (2015/0135672). The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Thedford teaches the claimed invention, except as noted: [AltContent: textbox (Positive airflow)][AltContent: arrow] PNG media_image1.png 666 488 media_image1.png Greyscale “(7) Copley et al. U.S. Pat. No. 3,515,437 discloses that the entrance of air into the duct structure is in a rear wall thereof. A major problem associated with the duct design illustrated in the Copley et al. patent is the location of the air nozzle. Locating the air nozzle relatively high on the duct structure, as shown in the Copley et al. patent, significantly reduces the drawing effect within a suction area in which cotton will be initially entrained for movement toward the air nozzle. Thus, locating the air nozzle relatively high in the duct structure significantly increases the susceptibility of the duct to plugging with cotton.” “(11) As shown in FIG. 3, the generally vertical duct section 36 has a generally rectangular walled configuration. The outlet 56 of the air jet 52 extends substantially the full width of the duct section 36 to enhance the flow of air and cotton therethrough. Air from a blower or fan (not shown) mounted on the harvester frame is distributed to each air nozzle through large supply conduits or lines 58.” A cotton flow accelerator for a cotton stripper, the airflow accelerator comprising: an air source (blower or fan, taught above); a nozzle having an inlet configured to receive an airflow from the air source and an outlet configured to direct airflow pushing cotton away from a cross auger (nozzle 50; “positive airflow” at outlet 56, the intended use is taught above, except the auger is not shown/taught); and one or more ducts (duct assembly 30) coupling the nozzle to the air source to form an air path therethrough (fig 1, ref 38), wherein the nozzle is coupled adjacent to the cross auger and directs the airflow to define a positive airflow at the cross auger (already addressed above). Minnich teaches in fig 3, par. 34, a secondary circulation system provide airflow 114 to the cross-conveyor / auger (32). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide the duct of Thedford with the teachings of Minnich, with a reasonable expectation of success since it would assist in conveying denser product. 2. The cotton flow accelerator according to claim 1, wherein the nozzle comprises a curved portion that forms one or more of: a generally J-shaped body; and/or a generally L-shaped body (taught in the combination, see Thedford, fig 3). 3. The cotton flow accelerator according to claim 1, wherein the nozzle comprises one or more of: an outlet configured to direct airflow from a front of the cross auger and tangential to a bottom of the cross auger; an outlet configured to direct airflow at an angle relative to a bottom of the cross auger; and/or an outlet configured to introduce airflow at an exit of the cross auger (taught in the combination, to one skilled, the tangential arrangement, i.e. as shown/taught in Thedford, fig 3, can be at the bottom in the combination, so the outlet is either at the exit / past the combination auger, or at the bottom of the auger). 4. The cotton flow accelerator according to claim 1, wherein the one or more ducts comprises an angled tube configured to connect in a plurality of different arrangements having different orientations relative to the cross auger (taught in the combination, see Thedford, fig 3, ref 58). 5. The cotton flow accelerator according to claim 1, further comprising a guard coupled adjacent to the nozzle (bottom portion of the combination duct housing the combination auger). 6. The cotton flow accelerator according to claim 1, wherein the air source comprises: a fan configured to supply air to a plurality of air pathways through different ducts of the one or more ducts (taught in the combination, already addressed in re Thedford, claim 1; similarly, Minnich includes a fan, par. 18), wherein the fan is configured to supply air to generate an additional airflow (discussed above, combination teaches a primary, i.e. Thedford, creates suction at the combination auger, and secondary at the cross-auger, taught by Minnich), wherein the additional airflow is a negative airflow downstream of the cross auger, wherein the fan comprises a plurality of rotors coupled to the different ducts (suction discussed above; fan obviously includes rotors). 7. The cotton flow accelerator according to claim 1, wherein the air source comprises a plurality of fans configured to supply air to a plurality of air pathways through different ducts of the one or more ducts (taught in the combination, see fig 3, ref 42, Minnich). 8. The cotton flow accelerator according to claim 1, wherein the nozzle is configured to direct the airflow to define a positive airflow at the cross auger, whereby cotton is pushed out of an exit of the cross auger and into a cotton stripper lower transition duct (intended use is obvious in view of the combination, such stripper can be in the section 36, fig 3, in Thedford). 9. The cotton flow accelerator according to claim 1, wherein the airflow is split into primary and secondary airflow paths comprising a negative airflow path operable to pull cotton through the cotton flow accelerator, and an additional positive airflow path operable to push the cotton through the cotton flow accelerator (already addressed, see in re cl. 6, 8). The following are already addressed above, unless otherwise noted: 10. A harvester vehicle comprising: a header system that includes a crop header component, wherein the crop header components comprises a cotton stripper header (taught in the combination, see Thedford, fig 1, harvester header 22) including a cross auger; and an air system comprising an air source and operably coupled to, and in communication with, the header system, the air system further comprising a cotton flow accelerator comprising: a nozzle having an inlet configured to receive air from the air source and an outlet configured to direct airflow relative to a cross auger, and one or more ducts coupling the nozzle to the air source to form an air path therethrough, wherein the nozzle is coupled adjacent to the cross auger and directs the airflow to define a positive airflow at the cross auger (see in re cl. 1). 11. The harvester vehicle of claim 10, wherein the nozzle of the cotton flow accelerator comprises one or more of: a curved portion that forms a generally J-shaped body; and/or a curved portion that forms a generally L-shaped body (cl. 2). 12. The harvester vehicle of claim 10, wherein the nozzle of the cotton flow accelerator comprises one or more of: an outlet configured to direct airflow from a front of the cross auger and tangential to a bottom of the cross auger; an outlet configured to direct airflow at an angle relative to a bottom of the cross auger; and/or an outlet configured to introduce airflow at an exit of the cross auger (cl. 3). 13. The harvester vehicle of claim 10, wherein the air source comprises a plurality of fans configured to supply air to a plurality of air pathways through different ducts of the one or more ducts (cl. 7). 14. The harvester vehicle of claim 10, wherein the nozzle is configured to direct the airflow to define a positive airflow at the cross auger, whereby cotton is pushed out of an exit of the cross auger and into a cotton stripper lower transition duct (cl. 8). 15. The harvester vehicle of claim 10, wherein the air source comprises: a fan configured to supply air to a plurality of air pathways through different ducts of the one or more ducts, wherein the fan is configured to supply air to generate an additional airflow, wherein the additional airflow is a negative airflow downstream of the cross auger, wherein the fan comprises a plurality of rotors coupled to the different ducts (cl. 6). 16. The harvester vehicle of claim 10, wherein the air source comprises a plurality of fans configured to supply air to a plurality of air pathways through different ducts of the one or more ducts (duplicate claim, see cl. 13). 17. The harvester vehicle of claim 10, wherein the nozzle is configured to direct the airflow to define a positive airflow at the cross auger, whereby cotton is pushed out of an exit of the cross auger and into a cotton stripper lower transition duct (duplicate claim, see cl. 14). 18. The harvester vehicle of claim 10, wherein the airflow is split into primary and secondary airflow paths comprising a negative airflow path operable to pull cotton through the cotton flow accelerator, and an additional positive airflow path operable to push the cotton through the cotton flow accelerator (cl. 9). The following method steps are already addressed in view the apparatus above, unless otherwise noted: 19. A method for configuring a cotton flow accelerator in a cotton stripper, the method comprising: configuring a nozzle to provide a positive airflow at a cotton inlet, wherein the nozzle comprises a curved portion to direct the positive airflow; coupling the nozzle to a cross auger of the cotton stripper and to an air source; and operating the nozzle to apply a pushing force at a header exit using the positive airflow (cl. 1, 10) . 20. A method for configuring a cotton flow accelerator in a cotton stripper according to claim 19, further comprising: coupling the cross auger of the cotton stripper to a negative airflow path operable to additionally pull cotton from the header exit using the negative airflow path (cl. 9). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See form 892. Wigdahl (6272821) teaches cotton stripper on the deflector wall (106), although the stripper is not claimed positively and particularly. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ARPAD FABIAN-KOVACS whose telephone number is (571) 272-6990. The examiner can normally be reached Mo-Th. 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, Joseph Rocca can be reached on (571) 272-8971. 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. /ARPAD FABIAN-KOVACS/ Primary Examiner, Art Unit 3671
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Prosecution Timeline

Jul 09, 2024
Application Filed
Jun 03, 2026
Non-Final Rejection mailed — §103 (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
85%
Grant Probability
88%
With Interview (+3.1%)
1y 11m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1874 resolved cases by this examiner. Grant probability derived from career allowance rate.

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