Patent JPS5335731A successfully refreshed from Google Patents.
JPS5335731A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Production of hollow* lighttweight concrete board and of combined hollow lighttweight concrete board
Assignee: AGC Inc
•
Filing: 1976-09-16
•
Granted: —
•
Expires: 1996-09-16
Abstract
No abstract record available.
Inventors
- 👤 Mikio Kozuka
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-09 07:35
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.