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LT - Kristalinių natrio silikatų gavimo būdas
EN - PROCESS FOR THE PRODUCTION OF CRYSTALLINE SODIUM SILICATES

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Patent lapsed (non-payment of fees)

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Patent application specification | Search report | Patent specification (0.18 Mb)
Bibliographic data
Indications of the International Patent Classification (IPC)
(51) INT.CL.: (2006.01) C01B 33/00
Patent
(11) Number of the document 3796
(13) Kind of document B
(21) Application number IP1447
(22) Date of filing the application 1993-11-05
(41) Date of publication of the application 1995-05-25
(45) Date of publication of patent 1996-03-25
Priority applications
(30) Number Date Country code
40 00 705.7 1990-01-12 DE
4894209 1991-01-11 SU
Applicant
(71) HOECHST AKTIENGESELLSCHAFT, D-65926 Frankfurt am Main, DE
Inventors
(72) Guenther SCHIMMEL, DE
Michael KOTZIAN, DE
Reinhard GRADL, DE
Grantee
(73) HOECHST AKTIENGESELLSCHAFT, D-65926 Frankfurt am Main, DE
Attorney or representative
(74) Reda ŽABOLIENĖ, METIDA, Verslo centras "VERTAS", Gynėjų g. 16, LT-01109 Vilnius, LT
Title
(54) PROCESS FOR THE PRODUCTION OF CRYSTALLINE SODIUM SILICATES
Last renewal fee
Payment date Validity (years) Amount
1998-10-30 6 480.00 LTL
Legal status
Patent lapsed (non-payment of fees)
Invalidation date 1999-11-05
Last update date 2021-10-22