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Patent 444275 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 444275
(21) Application Number: 444275
(54) English Title: CHEMICAL COMPOUND PREPARING PROCESS
(54) French Title: PROCEDE POUR LA PREPARATION DE COMPOSES CHIMIQUES
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC):
  • A23K 20/195 (2016.01)
  • A61K 31/00 (2006.01)
  • A61K 45/00 (2006.01)
  • B1D 59/32 (2006.01)
  • B1J 19/10 (2006.01)
  • B5D 5/12 (2006.01)
  • C1B 19/00 (2006.01)
  • C1B 25/08 (2006.01)
  • C1D 1/20 (2006.01)
  • C1D 3/04 (2006.01)
  • C1D 7/00 (2006.01)
  • C1G 1/00 (2006.01)
  • C1G 3/12 (2006.01)
  • C1G 5/00 (2006.01)
  • C1G 21/21 (2006.01)
  • C7B 39/00 (2006.01)
  • C7C 41/01 (2006.01)
  • C7C 43/12 (2006.01)
  • C7C 45/69 (2006.01)
  • C7C 49/00 (2006.01)
  • C7C 209/62 (2006.01)
  • C7C 215/14 (2006.01)
  • C7C 231/12 (2006.01)
  • C7C 237/26 (2006.01)
  • C7C 265/00 (2006.01)
  • C7C 303/32 (2006.01)
  • C7C 309/25 (2006.01)
  • C7C 311/00 (2006.01)
  • C7C 317/00 (2006.01)
  • C7C 321/00 (2006.01)
  • C7C 323/53 (2006.01)
  • C7D 211/84 (2006.01)
  • C7D 213/85 (2006.01)
  • C7D 215/00 (2006.01)
  • C7D 295/033 (2006.01)
  • C7D 305/14 (2006.01)
  • C7D 335/02 (2006.01)
  • C7D 493/18 (2006.01)
  • C7F 5/00 (2006.01)
  • C7F 15/00 (2006.01)
  • C7F 17/02 (2006.01)
  • C7G 11/00 (2006.01)
  • C8B 37/08 (2006.01)
  • C8F 4/00 (2006.01)
  • C8F 10/00 (2006.01)
  • C8F 110/00 (2006.01)
  • C12N 1/20 (2006.01)
  • C12P 1/06 (2006.01)
  • C12P 7/00 (2006.01)
  • C22B 3/00 (2006.01)
  • C23C 16/00 (2006.01)
  • C25B 1/00 (2021.01)
  • H1L 21/285 (2006.01)
(72) Inventors :
(73) Owners :
  • MERCK AND CO.
(71) Applicants :
  • MERCK AND CO. (United States of America)
(74) Agent:
(74) Associate agent:
(45) Issued: 1947-09-23
(22) Filed Date:
Availability of licence: N/A
Dedicated to the Public: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data: None

Abstracts

Sorry, the abstracts for patent document number 444275 were not found.

Claims

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Sorry, the claims for patent document number 444275 were not found.
Text is not available for all patent documents. The current dates of coverage are on the Currency of Information  page

Description

Note: Descriptions are shown in the official language in which they were submitted.

Sorry, the description for patent document number 444275 was not found. Text is not available for all patent documents. The current dates of coverage are on the Currency of Information  page

Representative Drawing

Sorry, the representative drawing for patent document number 444275 was not found.

Administrative Status

2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.

Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.

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Event History

Description Date
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Inactive: Expired (old Act Patent) latest possible expiry date 1964-09-23
Grant by Issuance 1947-09-23

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
MERCK AND CO.
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

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Document
Description 		 Date
(yyyy-mm-dd) 		 Number of pages   Size of Image (KB) 
Claims 1995-07-26 9 377
Drawings 1995-07-26 1 15
Descriptions 1995-07-26 4 192