Prosecution Insights
Last updated: April 19, 2026
Application No. 18/216,047

OPERATING METHOD FOR A SLICING MACHINE AND SLICING MACHINE SUITABLE THEREFOR

Non-Final OA §103
Filed
Jun 29, 2023
Examiner
KEENA, ELLA LORRAINE
Art Unit
3724
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Multivac Sepp Haggenmueller SE & Co. Kg
OA Round
3 (Non-Final)
20%
Grant Probability
At Risk
3-4
OA Rounds
2y 9m
To Grant
0%
With Interview

Examiner Intelligence

Grants only 20% of cases
20%
Career Allow Rate
1 granted / 5 resolved
-50.0% vs TC avg
Minimal -20% lift
Without
With
+-20.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
64 currently pending
Career history
69
Total Applications
across all art units

Statute-Specific Performance

§103
62.7%
+22.7% vs TC avg
§102
22.7%
-17.3% vs TC avg
§112
14.7%
-25.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 5 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 . Response to Amendment The amendment filed March 2nd, 2026 has been entered. Claims 1, 2, and 4-14 remain pending in the application. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre -AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre - AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “feeding unit” in claim 10. Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. The corresponding structure described in the specification for the 112(f) invoked limitations are as follows: • “feeding unit” as described structurally on page 13 of the specification. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre -AIA 35 U.S.C. 112, sixth paragraph. 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, 2, and 4-14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Scott Lindee et al. (US 5724874 A - hereinafter Lindee) in view of Stefan Lehmann et al. (DE 102019110738 A1 – hereinafter Lehmann) and Hai-yun Gao et al. (CN 113927644 A). Regarding claim 1, Lindee teaches an operating method for operating a slicing machine (Fig. 1, Slicing Machine 50), for slicing calibers (Fig. 1, Food Loaf 91) into slices (Fig. 1, Stacks of Slices 93) and, capable of creating shingled or stacked portions (Fig. 1, Stacks of Slices 93) from the slices, wherein - the slicing method can be switched between a slicing mode (examiner interprets that a slicing mode is when the machine is actively cutting a caliber) and a service mode (examiner interprets that a service mode is when the machine is not actively cutting a caliber), and - the service mode comprises several service programs aimed at different purposes (Col 10 lines 58-60 and Col 11 lines 4-11; service programs comprising the programs responsible for calibration and initial functions), the method comprising:- switching the slicing machine to the service mode (Col 10 lines 53-60; service mode – where the machine is on but not actively cutting - can be initiated by turning power on for the machine): and - after switching to the service mode, the slicing machine automatically selecting at least one service program (Col 11 lines 4-11; initial functions are performed automatically once initial conditions are met), triggered by at least one start event (Col 11 lines 4-11; initial functions are performed automatically once Screen 69 has been energized – Screen 69 being energized is the start event) occurring and detected. Lindee does not teach that the start event is occurring and detected by opening a movable protective door of a protective enclosure surrounding the entire slicing machine. However, Lehmann teaches a machine with a movable protective door (Fig. 2, Door 21) of a protective enclosure (Fig. 2, Protective Cover 15) surrounding an entire machine (Fig. 2, Processing Unit 13). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date to modify Lindee such that the slicing machine includes a moveable protective door of a protective enclosure surrounding the entire slicing machine as taught by Lehmann. Doing so is beneficial as it contains heat, particles, and fluid during operation of the slicing machine (Lehmann; Page 2, Para 4). The combination of Lindee and Lehmann does not teach that the start event is occurring and detected by opening the movable door. However, Gao teaches a start event (Page 7, third to last paragraph; cutting off Travel Switch 5) which is occurring and detected by opening a movable door (Fig. 2, Door 24). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date to modify the combination of Lindee and Lehmann such that the start event is occurring and detected by opening the moveable door as taught by Gao. Doing so is beneficial as accidental damage is prevented and safety performance is increased (Gao; Page 7, third to last paragraph). Regarding claim 2, Lindee further teaches the method according to claim 1, wherein after switching to the service mode and a start event detected a control unit (Fig. 1, Computer 54; all programs are ran by the computer, and it is inherently understood that an operator is aware of these programs and how to trigger them. Therefore, once the system is turned on a functional, all programs are viewed as offered by the computer to the operator) offers an operator a number of possible service programs for selection (Col 12 lines 48-58 and Col 13 lines 23-31; a number of programs can be selected after the screen has been energized, such as holding the load feed switch to activate a computer program for product removal and hitting a cycle start switch to home the machine). Regarding claim 4, Lindee further teaches the method according to claim 1, wherein a service program in spatial terms comprises as a preset at least one movement (Col 13 lines 23 - 34; the homing function comprises the movement of at least the Knife 149), including a stepwise movement sequence of a movable working part of the slicing machine (Col 13 lines 23-34; examiner interprets stepwise to mean progressing in a series of distant non-continuous stages. The homing operation involves the distinct stages of displaying a homing message, moving the Knife 149 to a home position, moving the Gripper 151 to a home position, and then performing subsequent homing operations), namely- where the moveable working part is movable over an endless path of movement (Col 6 lines 25-39; the Knife 149 is designed to move in rotation) - its movement by a defined distance (Fig. 7, Col 14 lines 64-67 and Col 15 lines 1-18; the movement of Knife 149 is defined through 49 rotations),- its approach to a defined position (Fig. 7, Col 14 lines 64-67 and Col 15 lines 1-18; a complete orbital movement of Knife 149 as measured must inherently start from a defined position), - where the moveable working part is movable only along a limited path of movement (Col 6 lines 25-39; the Knife 149 is limited to move only in its path of rotation),- its approach to a defined position of the limited movement path (Fig. 7, Col 14 lines 64-67 and Col 15 lines 1-18; a complete orbital movement of Knife 149 as measured must inherently start from a defined position). Regarding claim 5, Lindee further teaches the method according to claim 1, wherein a service program comprises in temporal terms as a preset - a time duration (Col 12 lines 2-4 ; the time period permissible before service of the machine is required). Regarding claim 6, Lindee further teaches the method according to claim 1, wherein a service program contains a detectable target event (Col 3 lines 66-67; the event is the Emergency Stop Switch 87 being activated) or a target event to be reported by an operator to a controller, which defines an end of the service program (Col 3 lines 66-67; hitting the Emergency Stop Switch ends all operations, which would include service programs). Regarding claim 7, Lindee further teaches the method according to claim 1, wherein conversion of the slicing machine (Col 12 lines 48-58; conversion to a product removal state) is enabled as a purpose of the service program by one or more movable working parts of the slicing machine approaching a conversion position (Col 12 lines 48-58; moving the Load Feed Switch 73 into a held position or conversion position). Regarding claim 8, Lindee further teaches the method according to claim 1, wherein - the at least one start event comprises several partial events occurring in a specific sequence (Col 10 lines 53-67 and Col 11 lines 1-7 ; partial events include the machine being powered on, which inherently must include the partial of connecting the machine to a power source beforehand, and the last partial event of the screen being energized), separate start events for individual processes of a service program take place one after another within a cycle (Col 10 lines 53-67, Col 11, Col 12, and Col 13 lines 1-25; where a cycle is full operation of the machine from turning the power on to turning it off, separate start events include (in order) energizing the screen (after which some input from the machine operator is necessary), a fault being found (after which the operator can hold down a switch to being product removal), and the cycle start switch being activated), in between the separate start events, an operator carries out activities, and the separate start events again occur in the context of a start or a completion of the operator activities (each time the machine is turned off and then back on, in otherwards a start of operator activities, the same sequence of start events repeats). Regarding claim 9, Lindee further teaches the method according to claim 1, wherein the at least one start event comprises a first event (Col 11 lines 4-11; initial functions are performed automatically once Screen 69 has been energized – Screen 69 being energized is the first event) occurring at the protective part of the slicing machine (Col 3 lines 30-35 ; Screen 69 is located at member 74 – the protective part - which creates a physical protective barrier between an operator and a blade) after switching to the service mode (Col 10 lines 53-60; service mode – where the machine is on but not actively cutting - can be initiated by turning power on for the machine). The combination of Lindee and Lehmann already teaches that the Screen 69 is located at the moveable protective door (See the rejection of claim 1 above), and therefore the first event occurs there. Regarding claim 10, Lindee further teaches a slicing machine for slicing calibers into slices and capable of creating shingled or stacked portions from slices, the slicing machine comprising:- a cutting unit (Fig. 1, Slicing Station 66), - a feeding unit (Fig. 1, Load Feed Mechanism 75) for feeding at least one caliber to the cutting unit, - a discharge unit (Fig. 1, Conveyor System 64) with at least one portioning belt (Fig. 3, Receiving Conveyor 130), - a control unit (Fig. 1, control unit comprising Computer 54 and Power Supply 55) including an operating unit (Fig. 1, Computer 54) for controlling movable parts of the slicing machine, wherein - the control unit is designed to perform the method according to claim 1 (the computer controls all programs and modes)- the control unit comprises a change-over switch for switching between the slicing mode and the service mode (Col 10 lines 53-60; power switch can be used to turn the machine off in slicing mode, and when power is turned back on the machine would be in service mode), - a sensor is present on the slicing machine, the sensor designed to detect and report a potential start event to the control unit (Col 14 lines 9-13; sensor switches detect if all guards are in place. Guards being either in or out of place is a potential start event). Regarding claim 11, Lindee further teaches the slicing machine according to claim 10, wherein the sensor is a position sensor for monitoring protective part of the slicing machine at which a start event can occur (Col 14 lines 9-13; sensor switches detect if all guards (protective parts) are in place, and therefore are position sensors). The combination of Lindee and Lehmann already teaches that the Screen 69 is located at the moveable protective door (See the rejection of claim 1 above), and therefore the start event occurs there. Regarding claim 12, Lindee further teaches the slicing machine according to claim 10, wherein the slicing machine further comprises at least one display element (Fig. 1, Display 69) for displaying which service program is active (Col 13 lines 26-35 ; Display 69 shows a homing message to show the homing program is being run). Regarding claim 13, Lindee further teaches the slicing machine according to claim 10, wherein - the operating unit comprises a selector switch for selecting a specific service program in the service mode (Col 11 lines 24-35 ; Display 69 is a touch screen which collects inputs, those inputs being used automatically thereafter to run a subsequent service program (starting up of various power systems), making the input action equivalent to selecting a service program). Regarding claim 14, Lindee further teaches the method of claim 1 further comprising starting the at least one service program selected (Col 10 lines 58-60 and Col 11 lines 4-11; service programs comprising the programs responsible for calibration and initial functions. Operator is disclosed to perform the calibrations, and initial functions run automatically). Response to Arguments Applicant's arguments filed 3/2/2026 have been fully considered but they are not persuasive. Applicant’s arguments with respect to claim 1 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELLA LORRAINE KEENA whose telephone number is (571)272-1806. The examiner can normally be reached 7:30am - 5:00 pm ET. 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, Boyer Ashley can be reached at (571) 272-4502. 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. /ELLA L KEENA/Examiner, Art Unit 3724 /BOYER D ASHLEY/Supervisory Patent Examiner, Art Unit 3724
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Prosecution Timeline

Jun 29, 2023
Application Filed
May 08, 2024
Response after Non-Final Action
Jun 26, 2025
Non-Final Rejection — §103
Sep 22, 2025
Response Filed
Nov 17, 2025
Final Rejection — §103
Mar 02, 2026
Request for Continued Examination
Mar 17, 2026
Response after Non-Final Action
Mar 24, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12539635
FOOD PRODUCT SLICING APPARATUS HAVING A PRODUCT GATE ASSEMBLY AND METHOD OF OPERATING SAME
2y 5m to grant Granted Feb 03, 2026
Study what changed to get past this examiner. Based on 1 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
20%
Grant Probability
0%
With Interview (-20.0%)
2y 9m
Median Time to Grant
High
PTA Risk
Based on 5 resolved cases by this examiner. Grant probability derived from career allow rate.

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