Ladder legs and adjustable leg extension ladder levelers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

SERIAL NO

14184662

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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US Family Size
Non-US Coverage

Abstract

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Improvements to the leg extension of an adjustable ladder leveler and, more generally, improvements to ladder legs. A shoe with fastener holes to reduce leg slippage. A shoe with a claw that folds to be parallel to the ladder leg and then slides upward with respect to the leg thereby becoming locked into position so that it cannot move away from being parallel so long as weight is applied on the ladder. Increased length and modified shape on the distal ends of control levers on the extendable leg ladder leveler so that the levers can be operated with a foot and do not require hand operation.

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Patent Owner(s)

Patent OwnerAddress
LANZAFAME PHILIP FPOULSBO WA

International Classification(s)

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  • 2014 Application Filing Year
  • E06C Class
  • 99 Applications Filed
  • 89 Patents Issued To-Date
  • 89.90 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lanzafame, Philip F Poulsbo, US 24 129

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Patent Citation Ranking

  • 8 Citation Count
  • E06C Class
  • 13.33 % this patent is cited more than
  • 10 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges148091101 - 1011 - 2021 - 3031 - 400510152025303540455055606570758085

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