Oil pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9903397
SERIAL NO

14818685

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to an oil pump for use in and attached to a device (e.g., chain saw) having an oil-supplied portion requiring an oil supply. An oil pump supplies lubricating oil to a guide groove of a guide bar in such a manner that a plunger having a gear portion meshing with a drive worm provided on a chain saw reciprocally moves in a pump body while rotating. Two guide pins for positioning an oil pump when attaching the oil pump to a chain saw body are provided on an attachment surface of the pump body to the chain saw body. The two guide pins are spaced apart in an axial direction of the plunger, each disposed on a centerline of a transverse cross section of the plunger.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
MAKITA CORPORATION3-11-8 SUMIYOSHI-CHO ANJO-SHI AICHI 446-8502

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nagase, Hiroki Tokyo, JP 24 110
Takayanagi, Yoshiaki Tokyo, JP 66 1171

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 27, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 27, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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