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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
MITAKA KOHKI CO LTD	1-18-8 NOZAKI MITAKA-SHI TOKYO 181-0014

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

• 2013 Application Filing Year
• G02B Class
• 6559 Applications Filed
• 5896 Patents Issued To-Date
• 89.90 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Doi, Masao	Tokyo, JP	27	180
# of filed Patents : 27 Total Citations : 180
Nakata, Yusuke	Tokyo, JP	42	392
# of filed Patents : 42 Total Citations : 392

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Patent Citation Ranking

• 8 Citation Count
• G02B Class

• 22.62 % this patent is cited more than
• 8 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 7, 2028

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
February 07, 2017	US,9563045,B2   US9563045B2	GRANTED PATENT AS SECOND PUBLICATION
February 27, 2014	US,20140055850,A1   US20140055850A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9563045

Surgical microscope apparatus and sealed drape

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Abstract

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At a front end of the lateral arm of a surgical microscope apparatus, the apparatus has an intake port. A band is tied around the front end of the lateral arm so that a drape is drawn only to a surgical microscope. Drawing the drape to the surgical microscope results in clearing the field of vision of a surgeon. Part of the drape around the lateral arm and a longitudinal arm is not drawn, to cause no hindrance in operability of the surgical microscope. The lateral arm and the like are hollow to form an inner ventilating path without separately preparing ventilating tubes or the like for ventilation.

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Description

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Claims

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Legal Events

 

• LAPS2025
• FP2025
• FEPP2024
• MAFP2020
• CC2017
• I2017
• STCF2017
• P2014
• F2013
• AS2013
• PD2012

Date	Code	Event	Description
Mar 17, 2025	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
Feb 07, 2025	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Feb 07, 2025
Sep 30, 2024	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY
Jul 27, 2020	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 26, 2017	CC	CERTIFICATE OF CORRECTION
Feb 07, 2017	I	Issuance
Jan 18, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Feb 27, 2014	P	Published
Aug 15, 2013	F	Filing
Jul 23, 2013	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DOI, MASAO;NAKATA, YUSUKE;REEL/FRAME:031017/0837 Owner name: MITAKA KOHKI CO., LTD., JAPAN Effective Date: Jul 23, 2013
Aug 22, 2012	PD	Priority Date