US3115807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic masking
Assignee: Logetronics Inc
•
Filing: 1960-06-17
•
Granted: 1963-12-31
•
Expires: 1980-06-17
Abstract
No abstract record available.
Inventors
- 👤 Dwin R Craig
- 👤 John N Street
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:06
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73; G03B27/725
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
PHOTOGRAPHIC MASKING APPARATUS COMPRISING A CATHODE RAY TUBE HAVING A CONTROL ELECTRODE AND A SUBSTANTIALLY HOMOGENEOUS WHITE LIGHT EMITTING SURFACE FOR PRODUCING A SCANNING BEAM; MEANS DEFINING AN OPTICAL PATH FOR LIGHT FROM SAID BEAM INCLUDING MEANS FOR SUPPORTING A TRANSPARENCY ADJACENT SAID SURFACE, MEANS FOR SUPPORTING A LIGHT SENSITIVE EMULSION REMOTE FROM SAID SURFACE, OPTICAL PROJECTING MEANS BETWEEN SAID SUPPORTING MEANS, AND MEANS FOR MOUNTING A COLOR SEPARATION FILTER BETWEEN SAID SUPPORTING MEANS; MEANS DEFINING A SECOND OPTICAL PATH FOR LIGHT FROM SAID BEAM INCLUDING A BEAM SPLITTER BE-
Claim 2
Dependent Claim
90 words
PHOTOGRAPHIC MASKING APPARATUS COMPRISING A CATHODE RAY TUBE HAVING A CONTROL ELECTRODE AND A SUBSTANTIALLY HOMOGENEOUS WHITE LIGHT EMITTING SURFACE FOR PRODUCING A SCANNING BEAM; MEANS DEFINING AN OPTICAL PATH FOR LIGHT FROM SAID BEAM INCLUDING MEANS FOR SUPPORTING A TRANSPARENCY ADJACENT SAID SURFACE, MEANS FOR SUPPORTING A LIGHT SENSITIVE EMULSION REMOTE FROM SAID SURFACE, OPTICAL PROJECTING MEANS BETWEEN SAID SUPPORTING MEANS, AND MEANS FOR MOUNTING A COLOR SEPARATION FILTER BETWEEN SAID SUPPORTING MEANS; MEANS DEFINING A SECOND OPTICAL PATH FOR LIGHT FROM SAID BEAM INCLUDING A BEAM SPLITTER BE-
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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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |