Railcar positioning system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 3, 2011
Grant Date -
Oct 14, 2010
app pub date -
Apr 13, 2009
filing date -
Apr 13, 2009
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A railcar positioning system operable as either an indexer or progressor is disclosed which includes a pair of spaced trackside railcar movers positioned outside and parallel to the rails of a railroad track. Each railcar mover includes a spaced trackside guideway located next to one of the railway rails, a plurality of spaced connected dog carriages mounted for operation together in the guideway, each dog carriage carrying a pusher dog mounted on the carriage, a reciprocating hydraulic cylinder associated with the plurality of spaced, connected dog carriages. A hydraulic power unit is connected to operate each of the cylinders individually or together and a control system is associated with the power unit for controlling the operation of the positioning system such that said positioning system may be optionally operated as an indexer or as a progressor.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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CALBRANDT INC | 768 - 7TH STREET SOUTH DELANO MN 55328 |
International Classification(s)

- 2009 Application Filing Year
- B61J Class
- 7 Applications Filed
- 2 Patents Issued To-Date
- 28.58 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Brandt, Calvin J | Delano, US | 14 | 313 |
# of filed Patents : 14 Total Citations : 313 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 2 Citation Count
- B61J Class
- 66.67 % this patent is cited more than
- 14 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Jun 23, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jan 10, 2018 | PD | Priority Date | |
Jan 09, 2018 | I | Issuance | |
Dec 20, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 18, 2017 | P | Published | |
Jan 31, 2017 | F | Filing | |
Oct 14, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MICROSOFT CORPORATION;REEL/FRAME:042828/0322 Owner name: MICROSOFT TECHNOLOGY LICENSING, LLC, WASHINGTON Effective Date: Oct 14, 2014 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LI, KANG;LI, YI;ZHOU, YIPING;AND OTHERS;SIGNING DATES FROM 20111204 TO 20111208;REEL/FRAME:042828/0160 Owner name: MICROSOFT CORPORATION, WASHINGTON |

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