Tailgate ladder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 22, 2008
Grant Date -
May 3, 2007
app pub date -
Oct 28, 2005
filing date -
Oct 28, 2005
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A ladder assembly for a pick-up truck is pivotally connected with the truck tailgate for movement between a stowed position where the ladder assembly is held against the tailgate and an operable position when the tailgate is lowered and the ladder assembly extends between the tailgate and the ground. A linkage assembly connects the ladder assembly with a mounting plate connected with the tailgate. The linkage assembly spaces the ladder assembly from the tailgate when the ladder assembly is in the operable condition, allows the angle of the ladder assembly relative to the tailgate to vary in accordance with the height of the tailgate relative to the ground, and prevents the ladder assembly from pivoting past a normal position relative to the ground. A handle is also pivotally connected with a side wall of the truck adjacent to the tailgate to assist a user with climbing the ladder assembly into the bed of the truck.
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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ENGINEERING SERVICES INC | 136 WOLVERTON LANE SEBASTOPOL MS 39359 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Dolan, Rex Howard | Carthage, MS | 1 | 26 |
# of filed Patents : 1 Total Citations : 26 |
Cited Art Landscape
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Patent Citation Ranking
- 17 Citation Count
- B60R Class
- 44.22 % this patent is cited more than
- 17 Age
Forward Cite Landscape
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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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Mar 09, 2015 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 08, 2015 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 08, 2015 |
Feb 08, 2015 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Sep 19, 2014 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 04, 2012 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 19, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BIOLEX THERAPEUTICS, INC.;REEL/FRAME:028278/0729 Owner name: SYNTHON BIOPHARMACEUTICALS B.V., NETHERLANDS Effective Date: Apr 19, 2012 |
Apr 19, 2012 | AS | ASSIGNMENT | free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:MIDCAP FINANCIAL SBIC, LP;REEL/FRAME:028276/0548 Owner name: BIOLEX THERAPEUTICS, INC., NORTH CAROLINA Effective Date: Apr 19, 2012 |
Sep 20, 2011 | CC | CERTIFICATE OF CORRECTION | |
Feb 08, 2011 | I | Issuance | |
Oct 01, 2010 | AS� | SECURITY INTEREST | free format text: SECURITY AGREEMENT;ASSIGNOR:BIOLEX THERAPEUTICS, INC.;REEL/FRAME:025333/0026 Owner name: MIDCAP FINANCIAL SBIC, LP, MARYLAND Effective Date: Oct 01, 2010 |
Mar 13, 2008 | P | Published | |
Nov 13, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DICKEY, LYNN F.;COX, KEVIN M.;PEELE, CHARLES G.;REEL/FRAME:021195/0646 Owner name: BIOLEX, INC., NORTH CAROLINA Effective Date: Nov 13, 2007 |
Oct 12, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION;REEL/FRAME:025240/0766 Owner name: BIOLEX, INC., NORTH CAROLINA Effective Date: Oct 12, 2007 |
Oct 11, 2007 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:BIOLEX, INC.;REEL/FRAME:020487/0980 Owner name: BIOLEX THERAPEUTICS, INC., NORTH CAROLINA Effective Date: Oct 11, 2007 free format text: CHANGE OF NAME;ASSIGNOR:BIOLEX, INC.;REEL/FRAME:020487/0980 Owner name: BIOLEX THERAPEUTICS, INC.,NORTH CAROLINA Effective Date: Oct 11, 2007 |
Jan 17, 2007 | F | Filing | |
Jan 17, 2006 | PD | Priority Date |

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