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

Patent Owner(s)

Patent Owner	Address
CERBERUS AG	CH-8708 MÄNNEDORF

International Classification(s)

• G08B:SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; A....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Botschi, Hans	Mannedorf, CH	1	14
# of filed Patents : 1 Total Citations : 14
Durrer, Bernhard	Wilen-Wollerau, CH	5	36
# of filed Patents : 5 Total Citations : 36
Gruber, Peter	Stafa, CH	61	1268
# of filed Patents : 61 Total Citations : 1268

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Patent Citation Ranking

• 14 Citation Count
• G08B Class

• 50.18 % this patent is cited more than
• 29 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

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

US Patent No: 9802870

Method of treating ceramic fibers by phosphating

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Abstract

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A method of treating silicon carbide fibers comprises phosphating heat treatment in a reactive gas so as to form a coating around each fiber for protection against oxidation. The coating comprises a surface layer of silicon pyrophosphate crystals and at least one underlying bilayer system comprising a layer of a phosphosilicate glass and a layer of microporous carbon.

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Description

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Claims

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Legal Events

 

• LAPS2021
• STCH2021
• FP2021
• FEPP2021
• I2017
• STCF2017
• AS2016
• AS2014
• P2014
• F2012
• PD2011

Date	Code	Event	Description
Dec 06, 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: LARGE ENTITY
Dec 06, 2021	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Oct 31, 2021	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Oct 31, 2021
Jun 21, 2021	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Oct 31, 2017	I	Issuance
Oct 11, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Aug 11, 2016	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:HERAKLES;REEL/FRAME:046678/0455 Owner name: SAFRAN CERAMICS, FRANCE Effective Date: Aug 11, 2016
Dec 23, 2014	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAZERAT, STEPHANE;PAILLER, RENE;LOISON, SYLVIE;AND OTHERS;SIGNING DATES FROM 20141204 TO 20141205;REEL/FRAME:034580/0427 Owner name: HERAKLES, FRANCE free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAZERAT, STEPHANE;PAILLER, RENE;LOISON, SYLVIE;AND OTHERS;SIGNING DATES FROM 20141204 TO 20141205;REEL/FRAME:034580/0427 Owner name: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, FRAN
Oct 23, 2014	P	Published
Nov 27, 2012	F	Filing
Dec 14, 2011	PD	Priority Date