U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Preparation of pharmaceutical mixtures

Patent 4957681 Issued on September 18, 1990. Estimated Expiration Date: Icon_subject April 3, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Process of encapsulation by interfacial polycondensation
Patent #: 4309213
Issued on: 01/05/1982
Inventor: Graber ,   et al.

Aqueous dispersion of olefin resins and continuous process for preparing thereof
Patent #: 4320041
Issued on: 03/16/1982
Inventor: Abe ,   et al.

Additive metering control system
Patent #: 4353482
Issued on: 10/12/1982
Inventor: Tomlinson ,   et al.

With accelerometer for detecting extraneous disturbances weigh feeder Patent #: 4722456
Issued on: 02/02/1988
Inventor: Laidlaw ,   et al.

Inventors

Assignee

Application

No. 331959 filed on 04/03/1989

US Classes:

264/211.23, Plural screws, plural extruders, or plural stage extruder222/1, PROCESSES OF DISPENSING222/77, WEIGHING264/122Utilizing diverse solid particles

Examiners

Primary: Thurlow, Jeffery
Assistant: Tentoni, Leo B.

Attorney, Agent or Firm

Foreign Patent References

  • 240906 EP. 10/12/1987
  • 3612211 DE. 10/12/1987
  • 3612212 DE. 10/12/1987

International Classes

B29C 047/00
B29C 047/60

Foreign Application Priority Data

1988-04-15 DE

Abstract

Pharmaceutical mixtures are prepared by continuous metering of the components and shaping by a conventional method.

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