this is the balance sheet:
date Activity cost
1993- 1994 Research sconducted to develop machine $384,000
jan 1995 design and constuction fo prototype $ 87.600
March 1995 Testing for models $ 42.000
Jan 1996 Fees paid to engineers and lawyers to $62.050
prepare patent, patent granted june 30, 1996
Nov 1997 Engineering activity necessary to advance the $81.500
the design to the manufacturing stage
Dec 1998 Legal fees paid to successfully defend patent $35.700
April 1999 Research aimed at modifying the design $43.000
July 2003 Legal fees paid in unsuccessful patent
infringement suit against a competitor $34.000

Assumed it has a useful life of 17 yeras when it received the initial patent. On Jan 1, 2001, it revised its useful life estimat downward to 5 remainging years. Amortization is computed for a full year if the cost is incurred prior to July 1, and no amortization for the year if the cost is incurred after June, 30. The company years end is Dec 31.

I have to compute the carrying vale for
- December 31, 1996

- December 31, 2000

- December 31, 2003


anyone has any idea???