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US3330692A Expired / Lapsed US ⏱️ 0.0 years remaining

Glare reducing of glass

Assignee: Individual
•
Filing: 1964-07-30
•
Granted: 1967-07-11
•
Expires: 1984-07-30
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Abstract

No abstract record available.

Inventors

  • 👤 Ehrlich Joseph Ronald

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 04:51
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/28; C03C17/32; C03C17/328; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/2438; Y10T428/24405; Y10T428/25; Y10T428/254

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 205 words
A TRANSPARENT OBJECT, A SURFACE OF WHICH IS COATED WITH A LIQUID WHICH, AFTER DRYING REDUCES THE GLARE AND REFLECTION OF SAID SURFACE WHILE KEEPING SAID OBJECT SUFFICIENTLY TRANSPARENT TO PERMIT COMPLETE VISIBILITY THROUGH SAID OBJECT OF IMAGES WHICH ARE IN CLOSE CONTACT WITH SAID OBJECT OR ARE LIGHT-PROJECTED ONTO IT, SAID COATING BEING SUFFICIENTLY ADHESIVE TO PERMIT WIPING WITH A DRY CLOTH AND BEING REMOVABLE WITH WATER AND WIPING, SAID LIQUID CONSISTING OF A SOLUTION OF ETHYLENE OXIDE POLYMER OF A MOLECULAR WEIGHT FROM SUBSTANTIALLY 6000 TO SUBSTANTIALLY 80,000 IN A VOLATILE LIQUID MEDIUM WHICH IS A SOLVENT FOR SAID ETHYLENE OXIDE POLYMERS AT ROOM TEMPERATURE AND WHICH ALSO PROMOTES CRYSTALIZATION OF SAID POLYMER, LEAVING AS IT EVAPORATES A VERY THIM LAYER OF SAID POLYMER WEIGHTING AT LEAST .0001 GRAM PER SQUARE INCH, SAID LAYER EXHIBITING SPHERULITE CRYSTALS, FORMING PATTERNS OF POLYGON-LIKE SHAPE MADE OF STILL SMALLER CRYSTAL STRUCTURES, SAID SYPHERULITES HAVING A SIZE FROM SUBSTANTIALLY 3 MICRONS TO SUBSTANTIALLY 40 MICRONS AND HAVING A WELL-DEFINED NUCLEUS-LIKE CENTER AREA WITH A DIAMETER CONSIDERABLY SMALLER THAN THE OUTER DIAMETER OF SAID SPHERULITES, SAID ETHYLENE OXIDE POLYMER BEING PRESENT IN THE LIQUID IN A CONCENTRTION FROM FROM SUBSTANTIALLY 0.1% BY WEIGHT TO SUBSTANTIALLY 10% BY WEIGHT.
Claim 2
Dependent Claim 205 words
A TRANSPARENT OBJECT, A SURFACE OF WHICH IS COATED WITH A LIQUID WHICH, AFTER DRYING REDUCES THE GLARE AND REFLECTION OF SAID SURFACE WHILE KEEPING SAID OBJECT SUFFICIENTLY TRANSPARENT TO PERMIT COMPLETE VISIBILITY THROUGH SAID OBJECT OF IMAGES WHICH ARE IN CLOSE CONTACT WITH SAID OBJECT OR ARE LIGHT-PROJECTED ONTO IT, SAID COATING BEING SUFFICIENTLY ADHESIVE TO PERMIT WIPING WITH A DRY CLOTH AND BEING REMOVABLE WITH WATER AND WIPING, SAID LIQUID CONSISTING OF A SOLUTION OF ETHYLENE OXIDE POLYMER OF A MOLECULAR WEIGHT FROM SUBSTANTIALLY 6000 TO SUBSTANTIALLY 80,000 IN A VOLATILE LIQUID MEDIUM WHICH IS A SOLVENT FOR SAID ETHYLENE OXIDE POLYMERS AT ROOM TEMPERATURE AND WHICH ALSO PROMOTES CRYSTALIZATION OF SAID POLYMER, LEAVING AS IT EVAPORATES A VERY THIM LAYER OF SAID POLYMER WEIGHTING AT LEAST .0001 GRAM PER SQUARE INCH, SAID LAYER EXHIBITING SPHERULITE CRYSTALS, FORMING PATTERNS OF POLYGON-LIKE SHAPE MADE OF STILL SMALLER CRYSTAL STRUCTURES, SAID SYPHERULITES HAVING A SIZE FROM SUBSTANTIALLY 3 MICRONS TO SUBSTANTIALLY 40 MICRONS AND HAVING A WELL-DEFINED NUCLEUS-LIKE CENTER AREA WITH A DIAMETER CONSIDERABLY SMALLER THAN THE OUTER DIAMETER OF SAID SPHERULITES, SAID ETHYLENE OXIDE POLYMER BEING PRESENT IN THE LIQUID IN A CONCENTRTION FROM FROM SUBSTANTIALLY 0.1% BY WEIGHT TO SUBSTANTIALLY 10% BY WEIGHT.

References Cited (Backward Citations)

US2617780A Cited
US3100750A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-07-10 1971-01-09 1971-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-07-10 1975-01-09 1975-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-07-10 1979-01-09 1979-07-11 $7700.00 Window Closed / Lapsed

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