Patent US3705938A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3705938A Expired / Lapsed US ⏱️ 0.0 years remaining

Activated polymer materials and process for making same

Assignee: HERCULES PROTECTIVE FABRIC COR
•
Filing: 1971-02-02
•
Granted: 1972-12-12
•
Expires: 1991-02-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract THIS INVENTION CONCERNS NON-POROUS, POLYMERIC ARTICLES HAVING ACTIVE ANTIBACTERIAL, ANTIFUNGAL AND COMBINATIONS OF ANTIBACTERIAL AND ANTIFUNGAL PROPERTIES. SAID ARTICLE COMPRISES A PREFORMED, SOLID, NON-POROUS, POLYMERIC SUBSTRATE, AND A SOLID NON-POROUS LAYER OF A POLYMERIC COMPOSITION ADHERENTLY APPLIED TO AT LEAST ON SURFACE OF SAID SUBSTRATE, SAID COMPOSITION CONTAINING AT LEAST ONE ACTIVATING AGENT SELECTED FROM THE GROUP CONSISTING OF ANTIBACTERIAL, ANTIFUNGAL, AND COMBINATIONS OF ANTIBACTERIAL AND ANTIFUNGAL ACTIVATING AGENTS. SAID AGENT IS DISTRIBUTED WITHIN SAID POLYMERIC COMPOSITION OF SAID LAYER AND BEING CAPABLE OF MIGRATING FROM SAID LAYER INTO AND THROUGHOUT SAID SUBSTRATE. SAID AGENT IS PRESENT IN SAID LAYER IN SUFFICIENT AMOUNT SO THAT UPON MIGRATION FROM SAID LAYER INTO SAID SUBSTRATE, AN EFFECTIVE LEVEL OF ANTIBACTERIAL, ANTIFUNGAL OR A COMBINATION OF ANTIFUNGAL AND ANTIBACTERIAL ACTIVITY IS PROVIDED THROUGHOUT SAID SUBSTRATE, AND ON AT LEAST ONE OTHER SURFACE OF SAID SUBSTRATE WHICH IS NOT IN DIRECT CONTACT WITH SAID LAYER.

Inventors

  • 👤 Seymour Hyman
  • 👤 Bruce S Bernstein
  • 👤 Ramesh Kapoor

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 17:55
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909

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

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-12-12 1976-06-12 1976-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-12-12 1980-06-12 1980-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-12-12 1984-06-12 1984-12-12 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag