Shields continued in use even after gunpowder powered weapons made them essentially obsolete on the battlefield.
Construction was delayed by a debate over her armament and she was not completed until 1874, by which time the ship was essentially obsolete.
"Does it hurt Long Island's image to have our largest business park essentially obsolete?"
I regard the arXiv as a success: for me, journals are essentially obsolete.
Schynbalds were essentially obsolete by the sixteenth century.
Modern fluorination methods have rendered sulfur trifluoride essentially obsolete.
These took so long to make and test that the aircraft was essentially obsolete by the time that they were completed.
The Tropic Moon I system was essentially obsolete before it was deployed, and tests quickly confirmed this.
This design is essentially obsolete.
Immediately after its appearance it was rendered essentially obsolete by the superior sound and ability to sample of the Linn LM-1.