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Browse by Category: Main > Material Science
Class Information
Number: 264/227
Name: Plastic and nonmetallic article shaping or treating: processes > With step of making mold or mold shaping, per se > Utilizing surface to be reproduced as an impression pattern > Forming mold from fluent material > With initial molding or treating of a surface to be reproduced > Developing a surface negative and then a surface positive mold
Description: Processes which includes a formation of a negative of the surface to be reproduced followed by a formation of a positive surface which is to be used itself as a pattern or mold.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
5858296 Preparation of biologically active molecules by molecular imprinting Jan. 12, 1999
5759468 Raised zone retroreflective cube corner article and method of manufacture Jun. 2, 1998
5750160 Nickel shell door molds and method of forming same May. 12, 1998
5746952 Method of making injection molded orthotics May. 5, 1998
5722166 Process for manufacturing a shaped part consisting of different materials Mar. 3, 1998
5716566 Method for making a mottled and patterned pen barrel Feb. 10, 1998
5707578 Method for making mold inserts Jan. 13, 1998
5676899 Process for producing articles from synthetic resins having wood appearance Oct. 14, 1997
5641437 Marking of mold inserts to produce marked contact lenses Jun. 24, 1997
5599491 Method and apparatus for making a mold for duplicating a positive master Feb. 4, 1997
5554331 Method of making a large decorative panel Sep. 10, 1996
5543100 Method for making artificial rocks, in particular large-scale rock imitations Aug. 6, 1996
5543108 Method of making microstructured bodies of plastic material Aug. 6, 1996
5538677 Method of producing elastic roller whose external curved surface cylindrical shape is of varying diameter Jul. 23, 1996
5538677 Method of producing elastic roller whose external curved surface cylindrical shape is of varying diameter Jul. 23, 1996
5529733 Method for making tubular members coated with a decorative layer having a randomly distributed chip pattern Jun. 25, 1996
5518537 Filler and wax composition for investment casting May. 21, 1996
5487933 Prosthetic articles and methods for producing same Jan. 30, 1996
5483890 Direct applied embossing casting methods Jan. 16, 1996
5462702 Method for resurfacing fiberglass boat hulls Oct. 31, 1995
5443774 Method for making artificial rocks, in particular large-scale rock imitations Aug. 22, 1995
5435959 Method of making a mold and parts from the mold Jul. 25, 1995
5395577 Process for forming artificial rocks Mar. 7, 1995
RE34862 Electrodeposition process Feb. 21, 1995
5381735 Process for printing using a photopolymeric mold made from photopolymerizable compositions with improved release properties Jan. 17, 1995
5374388 Method of forming contoured repair patches Dec. 20, 1994
5364580 Body part mold system Nov. 15, 1994
5298213 Method of making a ceramic burner head Mar. 29, 1994
5296178 Method of making a mold by spraying metal using a particulate mold release agent Mar. 22, 1994
5292474 Method of making a preformed fabric liner which lines a toothed belt construction Mar. 8, 1994
5286438 Method of fabricating a complex part made of composite material Feb. 15, 1994
5281382 Method of making molds Jan. 25, 1994
5266257 Method of making embossing rolls having indicia Nov. 30, 1993
5264175 Method for making three dimensional impressions Nov. 23, 1993
5250250 Process for forming artificial rocks Oct. 5, 1993
5246642 Method for resurfacing fiberglass boat hulls Sep. 21, 1993
5234655 Method of forming a mold Aug. 10, 1993
5225133 Method for manufacturing a golf ball mold Jul. 6, 1993
5221505 Method for molding a wall structure Jun. 22, 1993
5194204 Process for producing a silicized silicon carbide dipping former Mar. 16, 1993
5182063 Method and means of publishing images having coloration and three-dimensional texture Jan. 26, 1993
5178673 Investment casting compositions and processes for the manufacture and use thereof Jan. 12, 1993
5176867 Method of making a toothed belt construction with an endless preformed fabric sleeve Jan. 5, 1993
5169578 Method for producing and method of using slip casting mold Dec. 8, 1992
5156777 Process for making a prosthetic implant Oct. 20, 1992
5149607 Matrix Sep. 22, 1992
5124105 Method of manufacturing a wax pattern of a bladed rotor Jun. 23, 1992
5108671 Concrete formwork and method for forming a draft tube Apr. 28, 1992
5108686 Method of replicating a human nipple for use as a nursing device Apr. 28, 1992
5070668 Textured construction material and method of fabrication Dec. 10, 1991

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