← Back to Patent Explorer
US3560075A Expired / Lapsed US ⏱️ 0.0 years remaining

Oriented polymer microcrystalline light polarizing structures

Assignee: FMC Corp
•
Filing: 1967-03-24
•
Granted: 1971-02-02
•
Expires: 1987-03-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract LIGHT POLARIZING REFRACTING STRUCTURES ARE FORMED FROM DISPERSIONS OF ANISOTROPIC ORGANIC AND INORGANIC POLYMER MICROCRYSTALS, THE POLYMERS HAVING A CRYSTALLINE-AMORPHOUS MORPHOLOGICAL STRUCTURE. THE MICROCRYSTALS ARE DISPERSED IN A NON-SOLVENT LIQUID MEDIUM WHICH MAY INCLUDE A DISSOLVED POLYMER AND THE DISPERSION SPREAD OR CAST INTO SHEET FORM. THE MICROCRYSTALS ARE ORIENTED AND THE LIQUID IS THEN VOLATILIZED TO FORM A FILM OF THE MICROCRYSTALS OF TO FORM A POLYMER SHEET CONTAINING THE DISPERSED, ORIENTED MICROCRYSTALS. DISPERSIONS OF ANISOTROPIC ORGANIC AND INORGANIC POLYMER MICROCRYSTALS, THE POLYMERS HAVING A CRYSTALLINE-AMORPHOUS MORPHOLOGICAL STRUCTURE. THE MICROCRYSTALS ARE DISPERSED IN A NON-SOLVENT LIQUID MEDIUM WHICH MAY INCLUDE A DISSOLVED POLYMER AND THE DISPERSION SPREAD OR CAST INTO SHEET FORM. THE MICROCRYSTALS ARE ORIENTED AND THE LIQUID IS THAN VOLATILIZED TO FORM A FILM OF THE MICROCRYSTALS OR TO FORM A POLYMER SHEET CONTAINING THE DISPERSED, ORIENTED MICROCRYSTALS.

Inventors

  • 👤 Orlando A Battista
  • 👤 Mamerto M Cruz Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 09:00
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/30; G02B5/3025; G02B5/3033

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) 1974-02-01 1974-08-03 1975-02-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-01 1978-08-03 1979-02-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-01 1982-08-03 1983-02-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag