For each of the following intangible assets, indicate the amount of amortization expense that should be recorded for the year 2017 and the amount of accumulated amortization on the balance sheet as of December 31, 2017.

	Trademark	Patent	Copyright
Cost	$45,000	$47,400	$79,000
Date of purchase	1/1/10	1/1/12	1/1/15
Useful life	indefinite	10 yrs.	20 yrs.
Legal life	undefined	20 yrs.	50 yrs.
Method	SL*	SL	SL

*Represents the straight-line method.

If an amount is zero, enter "0".

Amount	Trademark	Patent	Copyright
2017 amortization expense	$fill in the blank 1	$fill in the blank 2	$fill in the blank 3
Accumulated amortization, Dec. 31, 2017	$fill in the blank 4	$fill in the blank 5	$fill in the blank 6