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US Patent 7871351 Efficient eight speed automatic transmission

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Edits on 27 Nov, 2023
"Add patent abstract"
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Golden AI
edited on 27 Nov, 2023
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Patent abstract

The present invention provides an eight speed automatic transmission for motor vehicles having three planetary gear sets, four friction clutches, a friction brake, a band brake and an optional overrunning clutch. The eight speed transmission according to the present invention exhibits good gear ratio progression and high efficiency due to its excellent gear mesh efficiency, low spin losses and low pinion speeds.

Edits on 21 May, 2023
"Remove leading 0 from patent number"
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edited on 21 May, 2023
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US Patent 07871351 Efficient eight speed automatic transmission US Patent 7871351 Efficient eight speed automatic transmission

Infobox
Patent Number
0787135100
Patent Number
787135100
Edits on 18 May, 2023
"Remove website redirecting to Patent Public Search front page"
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Golden AI
edited on 18 May, 2023
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=0787135100
Edits on 25 Apr, 2023
"Entity importer update"
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Golden AI
edited on 25 Apr, 2023
Infobox
Is a
Patent
Patent
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
078713510
Date of Patent
January 18, 2011
0
Patent Application Number
120366410
Date Filed
February 25, 2008
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=078713510
Patent Primary Examiner
‌
Tisha D Lewis
0
Edits on 23 Sep, 2022
"Entity importer update"
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Golden AI
edited on 23 Sep, 2022
Infobox
Is a
Patent
Patent
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
078713510
Date of Patent
January 18, 2011
0
Patent Application Number
120366410
Date Filed
February 25, 2008
0
Official Website
https://pdfpiw.uspto.gov/.piw?Docid=078713510
Patent Primary Examiner
‌
Tisha D Lewis
0
Edits on 4 Jun, 2022
"Entity importer update"
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Golden AI
edited on 4 Jun, 2022
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Infobox (+1 properties)
Infobox
Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07871351
Edits on 6 Dec, 2021
"Created via: Entity Importer"
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Golden AI
created this topic on 6 Dec, 2021
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Infobox (+7 properties)
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 US Patent 07871351 Efficient eight speed automatic transmission

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07871351
Date of patent
January 18, 2011
Patent application number
12036641
Date Filed
February 25, 2008
Patent primary examiner
‌
Tisha D Lewis

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