The Patent Finder

Austral-Erwin Engineering Co.

Also on record
Records under this name other than patents Austral-Erwin Engineering Co. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Showing 1 to 8 of 8 · Back to Austral-Erwin Engineering Co.

PatentTitleStatus Expires Confidence
US 3,933,550Heat bonding fluorocarbon and other plastic films to metal surfaces
Term ended
Term ended no later than Jan 20, 1996 · Low confidence
Term endedTerm ended no later than Jan 20, 1996Low confidence
US 3,933,567Apparatus for heat bonding fluorocarbon and other plastic films to metal surfaces
Term ended
Term ended no later than Jan 20, 1996 · Low confidence
Term endedTerm ended no later than Jan 20, 1996Low confidence
US 3,939,036Heat exchangers and evaporators
Term ended
Term ended no later than Feb 17, 1996 · Low confidence
Term endedTerm ended no later than Feb 17, 1996Low confidence
US 3,950,211Heat bonding fluorocarbon and other plastic films to metal surfaces
Term ended
Term ended no later than Apr 13, 1996 · Low confidence
Term endedTerm ended no later than Apr 13, 1996Low confidence
US 3,976,537Heat exchangers and evaporators
Term ended
Term ended no later than Aug 24, 1996 · Low confidence
Term endedTerm ended no later than Aug 24, 1996Low confidence
US 4,082,140Heat exchange method
Term ended
Term ended no later than Apr 4, 1998 · Low confidence
Term endedTerm ended no later than Apr 4, 1998Low confidence
US 4,119,485Heat exchangers and evaporators
Term ended
Term ended no later than Oct 10, 1998 · Low confidence
Term endedTerm ended no later than Oct 10, 1998Low confidence
US 4,127,164Heat exchange apparatus
Term ended
Term ended no later than Nov 28, 1998 · Low confidence
Term endedTerm ended no later than Nov 28, 1998Low confidence
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited