Patent US2635969A successfully refreshed from Google Patents.
US2635969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorescent yarns and method for producing same
Assignee: Individual
•
Filing: 1950-03-03
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Granted: 1953-04-21
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Expires: 1970-03-03
Abstract
No abstract record available.
Inventors
- 👤 Goldstein Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:55
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF IMPARTING PHOSPHORESCENCE TO SPUN YARNS WHICH COMPRISES PREPARING A LIQUID MIXTURE, SAID LIQUID MIXTURE CONTAINING A RESIN SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE, POLYVINYL, POLYETHYLENE, ACRYLIC RESIN AND COPOLYMERS THEREOF, THE RESIN BEING DISSOLVED IN AN ORGANIC SOLVENT, SAID LIQUID MIXTURE CONTAINING A PLASTICIZER COMPATIBLE WITH THE RESIN AND PHOSPHORESCENT CRYSTALS OF A SIZE WHICH WILL PASS THROUGH A SCREEN OF 20 TO 325 MESH DISPERSED THEREIN, THE RATIO OF PLASTICIZER TO RESIN BEING BETWEEN 4:1 AND 24:1; HEATING THE LIQUID MIXTURE TO BETWEEN 100* C. AND 150* C., IMMERSING THE YARNS IN THE LIQUID MIXTURE FOR A TIME SUFFICIENT TO HAVE THE YARNS BECOME THOROUGHLY WETTED, REMOVING THE YARNS FROM THE LIQUID, REMOVING EXCESS LIQUID FROM THE YARNS AND THEN WASHING THE YARNS AND DRYING THE SAME.
Claim 2
Independent Claim
132 words
A METHOD OF IMPARTING PHOSPHORESCENCE TO SPUN YARNS WHICH COMPRISES PREPARING A LIQUID MIXTURE, SAID LIQUID MIXTURE CONTAINING A RESIN SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE, POLYVINYL, POLYETHYLENE, ACRYLIC RESIN AND COPOLYMERS THEREOF, THE RESIN BEING DISSOLVED IN AN ORGANIC SOLVENT, SAID LIQUID MIXTURE CONTAINING A PLASTICIZER COMPATIBLE WITH THE RESIN AND PHOSPHORESCENT CRYSTALS OF A SIZE WHICH WILL PASS THROUGH A SCREEN OF 20 TO 325 MESH DISPERSED THEREIN, THE RATIO OF PLASTICIZER TO RESIN BEING BETWEEN 4:1 AND 24:1; HEATING THE LIQUID MIXTURE TO BETWEEN 100* C. AND 150* C., IMMERSING THE YARNS IN THE LIQUID MIXTURE FOR A TIME SUFFICIENT TO HAVE THE YARNS BECOME THOROUGHLY WETTED, REMOVING THE YARNS FROM THE LIQUID, REMOVING EXCESS LIQUID FROM THE YARNS AND THEN WASHING THE YARNS AND DRYING THE SAME.
References Cited (Backward Citations)
GB400068A
Cited
US2341009A
Cited
US2168534A
Cited
US2290690A
Cited
US2478387A
Cited
US2498592A
Cited
US2473877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |