US2498593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Daylight fluorescent resinous sheeting materials
Assignee: Individual
•
Filing: 1949-02-23
•
Granted: 1950-02-21
•
Expires: 1969-02-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Switzer
- 👤 Robert C Switzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:20
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/22; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A DAYLIGHT FLUORESCENT SHEETING COMPRISING A SUBSTANTIALLY TRANSPARENT SHEET OF THERMOPLASTIC RESINOUS MATERIAL, AT LEAST ONE SOLVATED DYE EXHIBITING A SUBTRACTIVE COLOR AND FLUORESCING IN RESPONSE TO DAYLIGHT WHEN IN DILUTE SOLUTION, AND PIGMENTING PARTICLES OF A TRANSPARENT THERMOSET RESINOUS CARRIER IN WHICH SAID DYE IS MAINTAINED IN A SOLVATED STATE, SAID PARTICLES BEING DISPERSED THROUGHOUT SAID SHEET, THE MAXIMUM WEIGHT OF DYE PER VOLUME OF CARRIER VARYING FROM SUBSTANTIALLY .025 GRAM FOR DYES PROJECTING YELLOW-GREEN LIGHT TO SUBSTANTIALLY .015 GRAM OF DYE PER CUBIC CENTIMETER OF SOLVATING CARRIER FOR DYES PROJECTING RED LIGHT, AND THE WEIGHT OF SAID AT LEAST ONE DYE NOT EXCEEDING .0005 GRAM OF DYE PER SQUARE CENTIMETER OF SURFACE OF THE SHEETING.
Claim 2
Dependent Claim
117 words
A DAYLIGHT FLUORESCENT SHEETING COMPRISING A SUBSTANTIALLY TRANSPARENT SHEET OF THERMOPLASTIC RESINOUS MATERIAL, AT LEAST ONE SOLVATED DYE EXHIBITING A SUBTRACTIVE COLOR AND FLUORESCING IN RESPONSE TO DAYLIGHT WHEN IN DILUTE SOLUTION, AND PIGMENTING PARTICLES OF A TRANSPARENT THERMOSET RESINOUS CARRIER IN WHICH SAID DYE IS MAINTAINED IN A SOLVATED STATE, SAID PARTICLES BEING DISPERSED THROUGHOUT SAID SHEET, THE MAXIMUM WEIGHT OF DYE PER VOLUME OF CARRIER VARYING FROM SUBSTANTIALLY .025 GRAM FOR DYES PROJECTING YELLOW-GREEN LIGHT TO SUBSTANTIALLY .015 GRAM OF DYE PER CUBIC CENTIMETER OF SOLVATING CARRIER FOR DYES PROJECTING RED LIGHT, AND THE WEIGHT OF SAID AT LEAST ONE DYE NOT EXCEEDING .0005 GRAM OF DYE PER SQUARE CENTIMETER OF SURFACE OF THE SHEETING.
References Cited (Backward Citations)
US1150118A
Cited
US2039734A
Cited
US2037793A
Cited
US2180508A
Cited
US2084526A
Cited
US2152856A
Cited
US2341009A
Cited
US2113090A
Cited
US2149993A
Cited
US2333329A
Cited
US2360516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |