紧急求助美国专利法律状态问题，已搜索没找到答案

哪位能帮我查一下美国专利5194266的法律状态吗？我查过http://portal.uspto.gov/external/portal/pair，但是看不懂啊。这个专利申请日为12-19-1991 ，授权日为03-16-1993 。
问题，其斐页里的

Notice:  The portion of the term of this patent subsequent to Apr,18,2006 has been disclaimed.
及[63] Continuation-in-part of Ser.No.391,207, Aug,8,1989, abandomed.
这两句该如何理解？
该专利是如何到期？
谢谢，非常急的问题。

US5194266,这个专利的第12缴费年费已缴,故其保护期要维持到届满.

Notice: The portion of the term of this patent subsequent to Apr,18,2006 has been disclaimed.
及[63] Continuation-in-part of Ser.No.391,207, Aug,8,1989, abandomed.这两句如何理解呢？

这个专利还有其它两个相关专利，4822777和5032582。其中4822777这个专利的保护范围大于5194266。具体查询如下：
5,194,266
March 16, 1993  
Amphotericin B/cholesterol sulfate composition and method
Inventors:  Abra; Robert (San Francisco, CA), Guo; Luke S. S. (Lafeyette, CA)  
Assignee: Liposome Technology, Inc. (Menlo Park, CA)  

Notice:  The portion of the term of this patent subsequent to April 18, 2006 has been disclaimed.
Appl. No.:  07/812,075
Filed:  December 19, 1991
The present invention is a continuation-in-part of U.S. patent application for \"Amphotericin B/Cholesterol Sulfate Cholesterol Sulfate Composition and Method\", Ser. No. 07/391,207, filed Aug. 8, 1989, now abandoned.

4,822,777
April 18, 1989
Amphotericin B/cholesterol sulfate composition
Inventors:  Abra; Robert (San Francisco, CA)  
Assignee: Liposome Technology, Inc. (Menlo Park, CA)
Appl. No.:  07/019,575
Filed:  February 27, 1987

5,032,582
July 16, 1991  
Method for treating fungal infections with amphotericin B/cholesterol sulfate composition
Inventors:  Abra; Robert (San Francisco, CA)  
Assignee: Liposome Technology, Inc. (Menlo Park, CA)
Appl. No.:  07/320,354
Filed:  March 8, 1989
This is a continuation of U.S. patent application entitled AMPHOTERICIN B/CHOLESTEROL SULFATE COMPOSITION AND METHOD, Ser. No. 019,575 filed Feb. 27, 1987 now U.S. Pat. No. 4,822,777.

其中4，822，777的保护范围大于5194266，

notice这里是不是说多出来的保护内容到2006年4月18日结束啊？