Lifting column
Patent D619830 Issued on July 20, 2010. Estimated Expiration Date: 
July 20, 2024. 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.
July 20, 2024. 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 D132210 D179938 2852883 Chair height adjustment mechanism Adjustable work table Support column for holding a patient support means D399079 D427461 Lifting column Power assisted lift for lubricator assembly InventorsAssigneeApplicationNo. 29300741 filed on 04/30/2008US Classes:D06/496Provision for adjustmentExaminersPrimary: Veynar, CaronAssistant: Bahta, Abraham Attorney, Agent or FirmClaimsCLAIM The ornamental design for a lifting column, as shown and described. DescriptionFIG. 1 is a perspective top view of a lifting column showing our ornamental design, when in a retracted state, FIG. 2 is a perspective bottom view thereof, FIG. 3 is another perspective top view thereof, FIG. 4 is another perspective bottom view thereof, FIG. 5 is an elevational left side view thereof, FIG. 6 is an elevational front view thereof, FIG. 7 is an elevational right side view thereof, FIG. 8 is an elevational rear view thereof, FIG. 9 is a bottom plan view thereof, FIG. 10 is a top plan view thereof, FIG. 11 is a perspective top view thereof when in an extended state, FIG. 12 is a perspective bottom view thereof when in an extended state, FIG. 13 is another perspective top view thereof when in an extended state, FIG. 14 is another perspective bottom view thereof when in an extended state, FIG. 15 is an elevational left side view thereof when in an extended state, FIG. 16 is an elevational front view thereof when in an extended state, FIG. 17 is an elevational right side view thereof when in an extended state; and, FIG. 18 is an elevational rear view thereof when in an extended state. Field of SearchSimulativeBase, foot or post (48) Provision for adjustment Formed of tubular or wire material Radiating spokes, i.e., spider Combined or convertible (4) Freeform Asymmetrical on one side Counter or bar type (45) Tripartite Formed entirely of material having uniform thickness Repeating or uniform configuration about axis Tubular or wire material forming supports Unitary support column, i.e., pedestal type Planar surface (44) Supports located at or beyond perimeter of top Distinct provision for plural users, e.g., recesses, etc. Folding or adjustable (34) Patient table or support (49) Table or couch LABORATORY, DENTAL, BARBER OR MEDICAL Bottom and back tiltable as unit To plural use positions Gas or hydraulic cylinder Motor actuated Leg attaching connections Understructure Elevating or leveling device Self-positioning Leg or foot Articulated link shifts surface With biased holding means; e.g., latch With force-multiplying means FLOOR JACK TYPE Rack and pinion or segment Retractable prop, support, or stabilizer With actuator for pivoted support Having additional translating or telescoping movement With actuator for translating or telescoping movement Jack or jackstand 52/834 52/737A 254/DIG9 254/ 90 108/144.1 254/ 92 |
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