← Back to Patent Explorer
US3466151A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluid exchange column

Assignee: TLD Group SAS
•
Filing: 1964-09-22
•
Granted: 1969-09-09
•
Expires: 1984-09-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Louis Sicard
  • 👤 Claude Daumard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 18:19
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/18; B01J; B01J15/00; B01J15/005; B01J16/00; B01J16/005; B01J19/00; B01J19/32; B01J2219/00; B01J2219/00002; B01J2219/00018; B01J2219/0002; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/32206; B01J2219/3221; B01J2219/32213; B01J2219/3222; B01J2219/32224; B01J2219/32227; B01J2219/324; B01J2219/32408; B01J2219/32483; Y; Y10; Y10S; Y10S261/00; Y10S261/72

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US1621728A Cited
US2526657A Cited
US2546479A Cited
US2841421A Cited
US2809818A Cited
US2887456A Cited
US3094575A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-09-08 1973-03-10 1973-09-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-09-08 1977-03-10 1977-09-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-09-08 1981-03-10 1981-09-09 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag