Hidden Blade - Do this invisibility last after you have made an attack?

[Stephen Ede]

http://www.d20pfsrd.com/magic/all-spells/h/hidden-blades

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You render a target weapon or up to 50 pieces of ammunition invisible, granting the wielder a +20 bonus on Sleight of Hand checks made to conceal the weapon or ammunition and a +5 circumstance bonus on Bluff checks to feint with the weapon or ammunition.
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So the question is, is this Invisibility or Greater Invisibilty?
ie: after you have attacked someone with the weapon is the blade still invisible?

[avr]

It just says that it makes them invisible, it doesn't directly reference either spell. The condition invisible and the special ability invisibility make no reference to the invisibility breaking on an attack. i.e. the blade stays invisible IMO.

Though I'd think it would be harder rather than easier to feint with an invisible weapon/ammo. Eh, whatever.

[Speaker for the Dead]

Since it’s only a second level spell I’d think it was meant to work like invisibility, not greater invisibility.

[ShieldLawrence]

avr wrote:

It just says that it makes them invisible, it doesn't directly reference either spell. The condition invisible and the special ability invisibility make no reference to the invisibility breaking on an attack. i.e. the blade stays invisible IMO.

Seconded.