Parasitic crane
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 4, 1989
Grant Date -
N/A
app pub date -
Aug 25, 1987
filing date -
Aug 25, 1987
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Forward Citations
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Abstract
A crane has a twin post and a twin boom construction and provides for numerous degrees of freedom. The crane is a trailer and uses the weight of a vehicle to which it is attached for stability when it is in an operating mode. The crane has wheels which may be lifted off the ground to allow its positioning by a vehicle to which it is attached.
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 | |
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HARSCO CORPORATION | 350 POPLAR CHURCH ROAD CAMP HILL PA 17011 |
International Classification(s)

- 1987 Application Filing Year
- B66C Class
- 133 Applications Filed
- 0 Patents Issued To-Date
- 0 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Johnson, Bruce S | Burbank, CA | 22 | 376 |
# of filed Patents : 22 Total Citations : 376 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 5 Citation Count
- B66C Class
- 0 % this patent is cited more than
- 36 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

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Mar 10, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Sep 19, 2017 | I | Issuance | |
Aug 30, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 29, 2017 | P | Published | |
May 25, 2017 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TOWNLEY, FRASER;GAMBLE, KELLY D.;SIGNING DATES FROM 20170510 TO 20170524;REEL/FRAME:042510/0417 Owner name: WIKIPAD, INC., CALIFORNIA |
Mar 13, 2017 | F | Filing |

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