Surgical knife
Patent D575403 Issued on August 19, 2008. Estimated Expiration Date: 
August 19, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 19, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3238942 D258310 D283544 Tapered I-beam surgical needles D321400 Trocar having blunt tip D359356 D370532 Trocar with improved blade attachment D391361 InventorAssigneeApplicationNo. 29273484 filed on 03/07/2007US Classes:D24/147Manually driven (32)ExaminersPrimary: Simmons, IanAssistant: Fitts, Carissa C Attorney, Agent or FirmForeign Patent References
ClaimsCLAIM The ornamental design for a surgical knife, as shown and described. DescriptionFIG. 1 is a front perspective view of a surgical knife showing my new design; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a top plan view thereof; FIG. 5 is a bottom plan view thereof; FIG. 6 is a right side elevational view thereof; and, FIG. 7 is a left side elevational view thereof. The broken lines in the drawings are shown for illustrated purposes only and form no part of the claimed design. The dot-dashed lines denote the boundary of the claim, and form no part of the claimed design. Field of SearchCutting, abrading, scraping or puncturing (31)Manually driven (32) Cutting Orthopedic cutting instrument Means for removal of skin or material therefrom By means for skin graft preparation (e.g., dermatome) Physical removal of hair or hair plugs from skin Cutter carried on elongated probe-like member Recriprocating or oscillating cutter Corneal cutter or guide for corneal cutter Optic, otic or oral scrapper or abrader Cutting, puncturing or piercing Saw type Reciprocating Oscillating Cylindrical Rotary cutter Lancet Spring driven or biased into cutting position Multiple blade Detachable blade, guarded cutting edge With waste-collecting, razor-cleaning and/or dispensing BLADES Razor blade Cutting couple element Having indicia Of specific material Including metallurgical characteristic Including details of cutting edge Toothed or waved edge Having three or more cutting edges Composite razor blade Interfitting sections Reinforces Apertured, notched or lugged Rotary Reinforced Detachable cutting edge Metallurgical feature Apertured, notched or lugged Reamer type Plural cutting edge Toothed or waved Longitudinally curved Edge structure |
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