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US D439,261 S1Granted

Sight glass

OwnerRobert J. Dilloninventor

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Abstract

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Claims1

Dependent claims

The ornamental design for sight glass, as shown and described.

Facts

Application: 29/114,930Filed 6 Dec 1999 · division
Priority: 25 Mar 1999
Granted: 20 Mar 2001
Term ends: Not estimatedThe source records don’t support an estimate.

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Family

Application29/102,593Parent of this division · filed 25 Mar 1999
US D423,538 SParent of this division
US D439,261 S1This patent

From the US filing history. Foreign family members aren’t listed.

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