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We work constantly to offer
extensive jewelry research, pictures and information in our references,
" Jewel Chat " and " Morning Glory Collects ".
We do not, however, offer valuation or appraisal services or answer
individual questions regarding jewelry or antiques. Appraisers can be
found on the LINKS page. |
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Jewelry
Patents
Coro
1901-1979
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Information about the jewelry companies comes from personal contacts, ads
and materials, old versions of "The Keystone Jewelry Trade Book" and "American
Jewelry Manufacturers" by Dorothy T. Rainwater.
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G. VERRECCHIO, 1938
No. 110,296
brooch
Gene Verrecchio |
CORO Duette rhinestone and
enameled pin/clip.
Courtesy of Bobye Syverson |
G. VERRECCHIO, 1938
No. 110,469
brooch
Gene Verrecchio |
BASKET brooch
with rhinestones and black and red enameling.
View #Y20309 |
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Coro Designers:
Adolph Katz, design director
Gene Verrecchio [Verri] ~1938 to late 1940
Charles E. Pauzat ~1939-1940
Oscar Placco ~1938-1945?
Robert Geissman ~1938
Carol McDonald ~1940
Marion Weeber ~1940-1941
Sidney Pearl ~1941
Lester Gaba ~1941
Victor di Mezza ~1950 |
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Source: Brunalti's A Tribute to America |
CORO- A. KATZ, 1939
No. 116,288
Bracelet
Adolph Katz |
G. VERRECCHIO, 1939
No. 117,802
clip
Gene Verrecchio |
WHITE enamel flower fur clip
with red and clear rhinestones, circa 1940.
View #Y27305 |
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ADOLPH KATZ, 1939
No. 118,121
clip
Adolph Katz |
ADOLPH KATZ, 1939
No. 118,122
clip
Adolph Katz |
C.E.PAUZAT, 1939
No. 118,130
brooch
Charles E. Pauzat |
CORO Day and Night
brooch with brown enameling on gold tone and clear rhinestones.
View
View
View #C20355 |
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ADOLPH KATZ, 1940
No. 119,306
clip
Adolph Katz |
ADOLPH KATZ, 1940
No. 119,307
clip
Adolph Katz |
ADOLPH KATZ, 1940
No. 119,308
clip
Adolph Katz |
ADOLPH KATZ, 1940
No. 119,309
clip
Adolph Katz |
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ADOLPH KATZ, 1940
No. 119,756
clip
Adolph Katz |
ADOLPH KATZ, 1940
No. 120,024
brooch
Adolph Katz |
G. VERRECCHIO, 1941
No. 125,646
brooch
Gene Verrecchio |
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G. VERRECCHIO, 1941
No. 125,649
brooch
Gene Verrecchio |
C. McDONALD, 1940
No. 119,830
pin clip
Carol McDonald |
G. VERRECCHIO, 1941
No. 125,647
brooch
Gene Verrecchio |
FLOWER brooch with
pearlized flowers, enameled leaves and clear rhinestone accents.
View #Y23497 |
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G. VERRECCHIO, 1941
No. 125,648
brooch
Gene Verrecchio |
Enameled and rhinestone brooch as shown in patent at left.
Courtesy of Kim Paff |
G. VERRECCHIO, 1941
No. 125,650
brooch
Gene Verrecchio |
G. VERRECCHIO, 1941
No. 125,651
brooch
Gene Verrecchio |
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G. VERRECCHIO, 1941
No. 125,652
brooch
Gene Verrecchio |
G. VERRECCHIO, 1941
No. 125,976
brooch
Gene Verrecchio |
Enameled bird pins with glass bellies, as shown in patent at left.
Courtesy of Kim Paff |
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G. VERRECCHIO, 1941
No. 126,490
pin clip
Gene Verrecchio |
CORO DUETTE red
enameled birds brooch with rhinestones.
View
#C10718 |
G. VERRECCHIO, 1941
No. 127,648
combined brooch and locket
Gene Verrecchio |
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ADOLPH KATZ, 1956
No. 177,837
pin clip
Adolph Katz |
ADOLPH KATZ, 1956
No. 177,520
pin clip
Adolph Katz |
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Utility patents show how a mechanism works... Design patents are for
the way it looks. Jim Katz downloaded almost all the jewelry design
patents from 1867 through 1965 and after 1955, the amount of jewelry design
patents tapers way off in comparison to earlier years.Coro and Trifari
are responsible for almost half of all jewelry design patents up through the
middle 1950's. Philippe for Trifari patents seem to disappear after about
1954, and Katz for Coro after 1965.
Jewelry Design Patents - (all approximations):
From 1858 - 1925 1,203 Jewelry Design Patents Granted
From 1925 - 1955 6,528 Jewelry Design Patents Granted
From 1955 - 1965 450 Jewelry Design Patents Granted
As you can see from the following information, patents are still being
granted but after 1965 the jewelry design patents from all the large
manufacturer's all but disappeared.
All patents - not just jewelry - (all approximations)
By 1971 there were approx. 220,000 design patents granted
By 2003 470,000 design patents granted
By 1971 3,600,000 utility patents granted
By 2003 6,670,000 utility patents granted
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