Patent US1915585A successfully refreshed from Google Patents.
Patent US3796668A successfully refreshed from Google Patents.
US3796668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent dye colored pvc
Assignee: BAYOU STATE ENTERPRISES Inc A CORP OF
•
Filing: 1972-06-14
•
Granted: 1974-03-12
•
Expires: 1992-06-14
Abstract
Abstract RIGID OR NON-PLASTICIZED POLYVINYL CHLORIDE OR COPOLYMERS THEREOF CONTAINING AN ORGANIC FLUORESCENT DYE SUCH AS A RHODAMINE DYE TO IMPART FLUORESCENT COLORATION TO THE RESIN HAS IMPROVED INITIAL FLUORESCENT AND FADE RESISTANCE UPON EXPOSURE TO LIGHT THROUGH THE INCORPORATION OF CHLORINATED POLYETHYLENE, PREFERABLY 25-45% BY WEIGHT OF THE POLYVINYL CHLORIDE AND CHLORINATED POLYETHYLENE CONTENT. ADDED IMPROVEMENT IN THESE AREAS IN GRAINED THROUGH THE USE OF A VINYL STABILIZER SELECTED FROM NONMERCAPTIDE ORGANO TIN OR A CHELATOR WITH BARIUM-CADMIUM-ZINC OR STRONTIUM-ZINC.
Inventors
- 👤 R Hickcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:43
CPC Classifications
C; C09; C09B; C09B11/00; C09B11/04; C09B11/10; C09B11/24; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C08K5/04; C08K5/09; C08K5/098; C08K5/49; C08K5/51; C08K5/52; C08L; C08L23/00; C08L23/26; C08L23/28; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L23/286
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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |