Jewelry – Gem
Reexamination Certificate
2006-12-12
2006-12-12
Mitchell, Katherine (Department: 3677)
Jewelry
Gem
CD11S089000, CD11S090000
Reexamination Certificate
active
07146827
ABSTRACT:
A mixed cut gemstone comprising a girdle, a crown above the girdle and a pavilion below the girdle. The crown has a girdle break, a table break and a table. The table break is cut with triangular shaped facets and the girdle break is cut with triangular and quadrilaterally shaped facets. The present invention also describes a pavilion having a width and a length formed by two pairs of opposing pavilion sides and four pavilion corners. The pavilion is composed of four steps including: a first step descending from said girdle to a first step facet junction, a second step descending from said first step facet junction to a second step facet junction, a third step descending from said second step facet junction to a third step facet junction, and a fourth step descending from said third step facet junction to said culet. This mixed cut gemstone enables the appreciation of the desirable characteristics of a diamond in ways that prior art cuts do not allow.
REFERENCES:
patent: 59299 (1866-10-01), Steel
patent: 138314 (1873-04-01), Bruhl
patent: 1291506 (1919-01-01), Heller
patent: 2265316 (1941-12-01), Schenck
patent: 3490250 (1970-01-01), Jones
patent: 3527198 (1970-09-01), Takaoka
patent: 3665729 (1972-05-01), Elbe
patent: 3788097 (1974-01-01), Elbe
patent: 3796065 (1974-03-01), Watermeyer
patent: 3875760 (1975-04-01), Jones
patent: D242643 (1976-12-01), Saltzman
patent: D244367 (1977-05-01), Saltzman
patent: 4020649 (1977-05-01), Grossbard
patent: 4118950 (1978-10-01), Grossbard
patent: 4306427 (1981-12-01), Urban
patent: 4555916 (1985-12-01), Grossbard
patent: 4708001 (1987-11-01), Alburger
patent: D297718 (1988-09-01), Cohen et al.
patent: 5072549 (1991-12-01), Johnston
patent: 5186024 (1993-02-01), Waters, Jr.
patent: 5190024 (1993-03-01), Senanayake
patent: D340670 (1993-10-01), Schachter
patent: 5293858 (1994-03-01), Peters
patent: 5454235 (1995-10-01), Freiesleben
patent: D365780 (1996-01-01), Kaplan
patent: 5623916 (1997-04-01), El-Gaouni
patent: D382225 (1997-08-01), Yuan
patent: D382506 (1997-08-01), Cohen
patent: 5657647 (1997-08-01), Freiesleben
patent: D384592 (1997-10-01), Simon-Tov et al.
patent: D391518 (1998-03-01), Slowinski et al.
patent: 5732690 (1998-03-01), Ogyu
patent: D398552 (1998-09-01), Simon-Tov et al.
patent: D400818 (1998-11-01), Rams
patent: D411479 (1999-06-01), Yerushalmi et al.
patent: D414133 (1999-09-01), Parker
patent: 5970744 (1999-10-01), Greeff
patent: 6006548 (1999-12-01), Freilich
patent: D429475 (2000-08-01), Steinberg
patent: D439542 (2001-03-01), Turner et al.
patent: D442114 (2001-05-01), Greeff
patent: D446152 (2001-08-01), Kejejian
patent: D457831 (2002-05-01), Kaufman
patent: D459269 (2002-06-01), Libovich et al.
patent: 6449985 (2002-09-01), Kejejian
patent: D467833 (2002-12-01), Mardkha
patent: 0016885 (1980-10-01), None
patent: 1013190 (2000-06-01), None
Clark, “Gem Cutting Term” International Gem Society, May 30, 2000 or earlier, 2 pages + 1 page date documentation.
Undated advertising showing Princess, Escada, Lucida, Eternal and Ashoka Cut Gemstones (p. 187).
Showing Lucida, Eternal and Escada Cut Gemstones. Modbee.com (website). The Wedding Guide: Special report, “Wedding Jewelery Often An Heirloom”. The Associated Press, Jan. 21, 2001, 2pps.
Gemstones of the Worldby Walter Schumann, p. 80. Showing Prince Cut Gemstone.
How to Choose a Fancy Shaped Diamond—Diamond Shape at Blue Nile (Website), 3pps.
Princess Cut—Accredited Gem Appraisers. Gemappraisers.com (website), 2pps, revised Jan. 1999.
John Mawe, “Treatise on Diamonds and Precious Stones-The Best Methods of Cutting and Polishing Them”, Second Edition, Longman, Hurst, Bees. Orme, and Brown, 1815.
Gemological Institute of America, “The GIA: Diamond, The Edition”, 1993.
Diamond Innovations, LLC
Lackenbach & Siegel LLP
Mitchell Katherine
LandOfFree
Mixed cut gemstone does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mixed cut gemstone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixed cut gemstone will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3703104