Patent US3226228A successfully refreshed from Google Patents.
US3226228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing a controlled pattern of ultraviolet radiation from that at higher wave lengths
Assignee: Individual
•
Filing: 1963-01-11
•
Granted: 1965-12-28
•
Expires: 1983-01-11
Abstract
No abstract record available.
Inventors
- 👤 Victor R Deitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:05
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF EXPOSING A DIAZO-SENSITIZED SHEET TO PRODUCE A POSITIVE COPY FROM AN ORIGINAL PRINT ON THE SENSITIZED SHEET COMPRISING THE STEPS OF REFLECTING VISIBLE LIGHT FROM THE ORIGINAL PRINT, DIRECTING THE VISIBLE LIGHT TO AN ELECTROLUMINESCENT RADIATION FREQUENCY CONVERTER, CONVERTING THE VISIBLE LIGHT TO ULTRA-VIOLET RADIATION AS IT PASSES THROUGH THE RADIATION CONVERTER AND DIRECTING THE ULTRA-VIOLET RADIATON ONTO SAID DIAZO-SENSITIZED SHEET TO REPRODUCE THE ORIGINAL PRINT ON THE DIAZO-SENSITIZED SHEET.
Claim 2
Independent Claim
73 words
THE METHOD OF EXPOSING A DIAZO-SENSITIZED SHEET TO PRODUCE A POSITIVE COPY FROM AN ORIGINAL PRINT ON THE SENSITIZED SHEET COMPRISING THE STEPS OF REFLECTING VISIBLE LIGHT FROM THE ORIGINAL PRINT, DIRECTING THE VISIBLE LIGHT TO AN ELECTROLUMINESCENT RADIATION FREQUENCY CONVERTER, CONVERTING THE VISIBLE LIGHT TO ULTRA-VIOLET RADIATION AS IT PASSES THROUGH THE RADIATION CONVERTER AND DIRECTING THE ULTRA-VIOLET RADIATON ONTO SAID DIAZO-SENSITIZED SHEET TO REPRODUCE THE ORIGINAL PRINT ON THE DIAZO-SENSITIZED SHEET.
References Cited (Backward Citations)
US2163776A
Cited
US2319882A
Cited
US2789904A
Cited
US2758939A
Cited
US2896087A
Cited
US2882419A
Cited
US2921218A
Cited
US2996381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |