Leveling system for aerial platforms
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 31, 1999
Grant Date -
N/A
app pub date -
Sep 3, 1997
filing date -
Sep 3, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for leveling a personnel carrying platform mounted on the end of an elongated vehicle mounted boom. A pendulum controlled hydraulic valve controls the application of fluid pressure to a pair of cylinders equipped on their ends with a series of links extending along a drum connected to the platform mounting pin. When the platform deviates from a level position, one of the cylinders is retracted to turn the platform mounting pin in a direction to correct the deviation. An interlock valve disables the platform leveling system unless the boom is being moved. A manual override valve allows the platform to be tilted for storage or other reasons.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ALTEC INDUSTRIES INC | 210 INVERNESS CENTER DRIVE BIRMINGHAM AL 35242 |
International Classification(s)

- 1997 Application Filing Year
- E04G Class
- 156 Applications Filed
- 43 Patents Issued To-Date
- 27.57 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Burgoon, Roger Leigh | St. Joseph, MO | 1 | 32 |
# of filed Patents : 1 Total Citations : 32 | |||
Clevenger, R Dustin | St. Joseph, MO | 1 | 32 |
# of filed Patents : 1 Total Citations : 32 | |||
Player, Bryan D | St. Joseph, MO | 2 | 32 |
# of filed Patents : 2 Total Citations : 32 | |||
Vollmer, Edwin L | St. Joseph, MO | 3 | 52 |
# of filed Patents : 3 Total Citations : 52 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 32 Citation Count
- E04G Class
- 95.79 % this patent is cited more than
- 26 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 |
---|---|---|---|
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 |
---|---|---|---|
Apr 05, 2021 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Apr 05, 2021 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 28, 2021 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 28, 2021 |
Oct 19, 2020 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Feb 28, 2017 | I | Issuance | |
Feb 08, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 28, 2016 | P | Published | |
Jan 21, 2016 | F | Filing | |
Jan 22, 2015 | PD | Priority Date |

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