← Back to Patent Explorer
JPS5329672A Expired / Lapsed JP ⏱️ 0.0 years remaining

Gas etching apparatus

Assignee: Toshiba Corp
•
Filing: 1976-08-31
•
Granted: —
•
Expires: 1996-08-31
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE: To prolong the life of a gas etching apparatus by making an etching chamber, etching gas transporting system and supporting members within the etching chamber through the use of fluorine resins or covering these with said resins. COPYRIGHT: (C)1978,JPO&Japio

Inventors

  • 👤 Yasuhiro Horiike
  • 👤 Masahiro Shibagaki
  • 👤 Takashi Yamazaki

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-08 05:16
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag