US3270451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for exhibiting a display
Assignee: Eastman Kodak Co
•
Filing: 1963-10-21
•
Granted: 1966-09-06
•
Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Bartleson Christian James
- 👤 Edwin J Breneman
- 👤 David L Macadam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:04
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A DISPLAY FOR EXHIBITING A REFLECTION-TYPE COLOR REPRODUCTION OF A SUBJECT IN AN ENVIRONMENT OF AMBIENT LIGHT HAVING A GIVEN LEVEL OF ILLUMINATION SO THAT IT WILL APPEAR AS A BACK-LIGHTED TRANSPARENCY, THE COMBINATION COMPRISING (A) A SUBSTANTIALLY VERTICAL SUPPORT HAVING A FRONT SURFACE ON WHICH SAID REFLECTION-TYPE REPRODUCTION IS MOUNTED AND COMPLETELY COVERS THE SAME; (B) MEANS, INCLUDING A LIGHT SOURCE, FOR UNIFORMLY ILLUMINATING SAID REPRODUCTION TO A LEVEL OF ILLUMINATION SUBSTANTIALLY GREATER THAN SAID GIVEN LEVEL OF ILLUMINATION OF SAID AMBIENT LIGHT; AND (C) A LIGHT TRAP MEANS OF A DARK CONTRASTING COLOR COMPLETELY SURROUNDING SAID SUPPORT TO PREVENT LIGHT FROM SAID ILLUMINATING MEANS WHICH DOES NOT IMPINGE UPON SAID REPRODUCTION FROM BEING REFLECTED BACK TO AN OBSERVER LOCATED IN FRONT OF SAID SUPPORT AND THEREBY PROVIDE A DARK CONTRASTING BORDER COMPLETELY SURROUNDING SAID REPRODUCTION.
Claim 2
Dependent Claim
138 words
IN A DISPLAY FOR EXHIBITING A REFLECTION-TYPE COLOR REPRODUCTION OF A SUBJECT IN AN ENVIRONMENT OF AMBIENT LIGHT HAVING A GIVEN LEVEL OF ILLUMINATION SO THAT IT WILL APPEAR AS A BACK-LIGHTED TRANSPARENCY, THE COMBINATION COMPRISING (A) A SUBSTANTIALLY VERTICAL SUPPORT HAVING A FRONT SURFACE ON WHICH SAID REFLECTION-TYPE REPRODUCTION IS MOUNTED AND COMPLETELY COVERS THE SAME; (B) MEANS, INCLUDING A LIGHT SOURCE, FOR UNIFORMLY ILLUMINATING SAID REPRODUCTION TO A LEVEL OF ILLUMINATION SUBSTANTIALLY GREATER THAN SAID GIVEN LEVEL OF ILLUMINATION OF SAID AMBIENT LIGHT; AND (C) A LIGHT TRAP MEANS OF A DARK CONTRASTING COLOR COMPLETELY SURROUNDING SAID SUPPORT TO PREVENT LIGHT FROM SAID ILLUMINATING MEANS WHICH DOES NOT IMPINGE UPON SAID REPRODUCTION FROM BEING REFLECTED BACK TO AN OBSERVER LOCATED IN FRONT OF SAID SUPPORT AND THEREBY PROVIDE A DARK CONTRASTING BORDER COMPLETELY SURROUNDING SAID REPRODUCTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |