← Back to Patent Explorer
FR1294982A Expired / Lapsed FR ⏱️ 0.0 years remaining

Process for producing silica coated metal oxide hydrosols by treating an uncoated hydrosol with an organic silicate which is then hydrolyzed

Assignee: WR Grace and Co
•
Filing: 1961-05-09
•
Granted: 1962-06-01
•
Expires: 1981-05-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-26 06:57
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0004; B01J13/0047; B01J13/0039; G; G21; G21C; G21C1/00; G21C1/04; G21C1/24; G21C3/00; G21C3/42; G21C3/44; G21C3/46; G21C3/48; Y; Y02; Y02E; Y02E30/00; Y02E30/30

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