Patent US2153229A successfully refreshed from Google Patents.
Patent US829663A successfully refreshed from Google Patents.
CA999718A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Method and apparatus for purifying fluids
Assignee: MELTZER HAROLD
•
Filing: 1974-01-07
•
Granted: 1976-11-16
•
Expires: 1994-01-07
Abstract
No abstract record available.
Inventors
- 👤 Myron D. Wood
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 02:40
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/30; C02F1/32; C02F1/325; A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/10; C02F2201/00; C02F2201/32; C02F2201/322; C02F2201/3223; C02F2201/3227; C02F2201/324; C02F2301/00; C02F2301/02; C02F2301/022
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.