JPS538858A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Dash-board for multi-spiral fin tube system
Assignee: Mitsui Engineering and Shipbuilding Co Ltd
•
Filing: 1976-07-14
•
Granted: —
•
Expires: 1996-07-14
Abstract
Abstract PURPOSE: To easily allow fitting without preventing the mass production of a spiral fin tube, and to make the design of a multi-spiral fin tube system heat exchanger easy, and to reduce cost, in a heat exchanger that uses the spiral fin tube with continuous spiral fins as a heat transmission tube. COPYRIGHT: (C)1978,JPO&Japio
Inventors
- 👤 Tadahiko Yamanaka
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-04 23:45
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.