JPS5650253A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Apparatus for increasing or decreasing oxygen content in air and method of producing and operating thereof
Assignee: Individual
•
Filing: 1980-09-03
•
Granted: —
•
Expires: 2000-09-03
Abstract
No abstract record available.
Inventors
- 👤 Borufu Furiitoritsuhi
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-10-30 11:54
CPC Classifications
F; F23; F23L; F23L7/00; F23L7/007; B; B01; B01D; B01D53/00; B01D53/22; B01D63/00; B01D63/02; B01D63/026; B01D69/00; B01D69/08; F02; F02M; F02M25/00; Y; Y02; Y02E; Y02E20/00; Y02E20/34
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.