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He obtained his first patent ({{FPO Patent|293545}}) in 1889, and a subsequent patent ({{FPO Patent|512319}}) in 1894 for his special ''[[Lucky Curve]]'' feeder, which went back inside the pen with a special curved shape that is claimed to be able to call back the excess ink when the pen was not in use. In 1891 ''George Parker'' associated with ''W. F. Palmer'', an insurer and they incorporated ''The Parker Pen Company'' in Janesville.

He obtained his first patent ({{FPO Patent|293545}}) in 1889, and a subsequent patent ({{FPO Patent|512319}}) in 1894 for his special ''[[Lucky Curve]]'' feeder, which went back inside the pen with a special curved shape that is claimed to be able to call back the excess ink when the pen was not in use. In 1891 ''George Parker'' associated with ''W. F. Palmer'', an insurer and they incorporated ''The Parker Pen Company'' in Janesville.

In fact, the ''"[[Lucky Curve]]"'' was simply a good feeder, which remained in production until 1928, and was used as a trademark for a number of pens, but there are doubts that the curved form actually had the effect to avoid the accumulation of ink, because much repairers cutted it, because the curved part makes it difficult to reinsert it between the nib and section.

In fact, the ''"[[Lucky Curve]]"'' was simply a good feeder, which remained in production until 1928, and was used as a trademark for a number of pens, but there are doubts that the curved form actually had the effect to avoid the accumulation of ink, because much repairers cutted it, because the curved part makes it difficult to reinsert it between the nib and section.

[[Image:Parker-Snake-Capped.jpg|thumb|A rare [[Parker Snake]] ]]

[[Image:Parker-Snake-Capped.jpg|thumb|A rare [[Parker Snake]] ]]

[[Image:Parker-Duofold-VestsPocket-Serie.jpg|thumb|All color for ''[[Vest pocket]]''  [[Duofold]].]]

[[Image:Parker-Duofold-VestsPocket-Serie.jpg|thumb|All color for ''[[Vest pocket]]''  [[Duofold]].]]

In 1926 was introduced an economic model, the [[Duofold|Parker DQ]], named such as ''Duofold Quality''. In 1927 the company introduced the [[Pastel]] models in pastel colors, as an alternative to the [[Duofold]] ladies model, sold at a lower price, but with the coming of Great Depression, the company was faced with a critical period.  

In 1926 was introduced an economic model, the [[Duofold|Parker DQ]], named such as ''Duofold Quality''. In 1927 the company introduced the [[Pastel]] models in pastel colors, as an alternative to the [[Duofold]] ladies model, sold at a lower price, but with the coming of Great Depression, the company was faced with a critical period.

In 1929 the profits that were enormous suffered a steep fall, many producers failed and others had to sell off their pens at low prices. [[Parker]], that taken years to establish its brand, decided not to devalue his pens, and kept prices high for the [[Duofold]], but in order to compete in 1932 introduced a range of economic models, school-type, for which they did no advertising. These models did not have a name and are usually indicated by collectors as [[Thrift Time]], or ''[[Parker depression pen|depression pen]]''.

In 1929 the profits that were enormous suffered a steep fall, many producers failed and others had to sell off their pens at low prices. [[Parker]], that taken years to establish its brand, decided not to devalue his pens, and kept prices high for the [[Duofold]], but in order to compete in 1932 introduced a range of economic models, school-type, for which they did no advertising. These models did not have a name and are usually indicated by collectors as [[Thrift Time]], or ''[[Parker depression pen|depression pen]]''.