US2631499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selected light transmission and protective materials
Assignee: Rile-Coe Filter Process Inc
•
Filing: 1945-07-23
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Granted: 1953-03-17
•
Expires: 1965-07-23
Abstract
No abstract record available.
Inventors
- 👤 Elwyn G B Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:06
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/22; G02B5/223; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T442/00; Y10T442/20; Y10T442/259; Y10T442/2607
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A SELECTED LIGHT TRANSMISSION MATERIAL COMPRISING A BASE MATERIAL NORMALLY TRANSPARENT TO WAVE LENGTHS OF ULTRAVIOLET, VISIBLE AND INFRARED LIGHT; SAID MATERIAL HAVING INCORPORATED DIRECTLY THEREWITH A SOLUBLE YELLOW DYE LIGHT ABSORBENT IN SUFFICIENT AMOUNT TO ABSORB ULTRAVIOLET AND VISIBLE LIGHT BELOW APPROXIMATELY 4900 ANGSTROM UNITS, BUT SUBSTANTIALLY TRANSMIT WAVE LENGTHS OF VISIBLE LIGHT AND INFRARED LIGHT ABOVE 4900 A. U., AND AT LEAST ONE OTHER LIGHT ABSORBENT ABSORPTIVE OF WAVE LENGTHS OF LIGHT BETWEEN 6300 AND 7500 ANGSTROM UNITS AND SELECTED FROM THE GROUP CONSISTING OF A PHTHALOCYANINE AND A SOLUBLE LIGHT-FAST BLUE DYE IN SUFFICIENT AMOUNT TO RESTRICT TRANSMISSION OF WAVE LENGTHS OF VISIBLE LIGHT IN THE REGION BETWEEN 6300 AND 7500 ANGSTROM UNITS, THE ABSORPTION PROPERTIES OF SAID COMBINED DYES BEING SUCH THAT IN COMBINATION THEY SUBSTANTIALLY TOTALLY ABSORB WAVE LENGTHS OF LIGHT BELOW 4900 ANGSTROM UNITS AND SUBSTANTIALLY RESTRICT TRANSMISSION OF WAVE LENGTHS OF LIGHT BETWEEN 6300 AND 7500 AND THE TRANSMISSION PROPERTIES OF SAID COMBINED DYES ALLOWING TRANSMISSION OF VISIBLE LIGHT BETWEEN 5000 AND 6000 ANGSTROM UNITS.
Claim 2
Dependent Claim
172 words
A SELECTED LIGHT TRANSMISSION MATERIAL COMPRISING A BASE MATERIAL NORMALLY TRANSPARENT TO WAVE LENGTHS OF ULTRAVIOLET, VISIBLE AND INFRARED LIGHT; SAID MATERIAL HAVING INCORPORATED DIRECTLY THEREWITH A SOLUBLE YELLOW DYE LIGHT ABSORBENT IN SUFFICIENT AMOUNT TO ABSORB ULTRAVIOLET AND VISIBLE LIGHT BELOW APPROXIMATELY 4900 ANGSTROM UNITS, BUT SUBSTANTIALLY TRANSMIT WAVE LENGTHS OF VISIBLE LIGHT AND INFRARED LIGHT ABOVE 4900 A. U., AND AT LEAST ONE OTHER LIGHT ABSORBENT ABSORPTIVE OF WAVE LENGTHS OF LIGHT BETWEEN 6300 AND 7500 ANGSTROM UNITS AND SELECTED FROM THE GROUP CONSISTING OF A PHTHALOCYANINE AND A SOLUBLE LIGHT-FAST BLUE DYE IN SUFFICIENT AMOUNT TO RESTRICT TRANSMISSION OF WAVE LENGTHS OF VISIBLE LIGHT IN THE REGION BETWEEN 6300 AND 7500 ANGSTROM UNITS, THE ABSORPTION PROPERTIES OF SAID COMBINED DYES BEING SUCH THAT IN COMBINATION THEY SUBSTANTIALLY TOTALLY ABSORB WAVE LENGTHS OF LIGHT BELOW 4900 ANGSTROM UNITS AND SUBSTANTIALLY RESTRICT TRANSMISSION OF WAVE LENGTHS OF LIGHT BETWEEN 6300 AND 7500 AND THE TRANSMISSION PROPERTIES OF SAID COMBINED DYES ALLOWING TRANSMISSION OF VISIBLE LIGHT BETWEEN 5000 AND 6000 ANGSTROM UNITS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |