US2665984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making combined line and halftone negatives
Assignee: Individual
•
Filing: 1950-02-27
•
Granted: 1954-01-12
•
Expires: 1970-02-27
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Frank P Le
- 👤 Henning E Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:36
CPC Classifications
G; G03; G03F; G03F5/00; G03F5/24; Y; Y10; Y10S; Y10S430/00; Y10S430/153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF MASKING OUT PORTIONS OF AN IMAGE TO PREVENT SAME FROM APPEARING ON A FILM IN A CAMERA WHEN SAID FILM IS EXPOSED WHICH COMPRISES; INSERTING A VIEWING GLASS IN THE POSITION TO BE OCCUPIED BY SAID FILM, PLACING A TRANSPARENT SHEET ADJACENT THE REAR FACE OF SAID GLASS, SECURING MASKING MATERIAL TO SAID SHEET TO COVER THE PORTIONS OF SAID IMAGE WHICH ARE TO BE MASKED OUT, MOVING SAID VIEWING GLASS OUT OF LINE WITH LIGHT CAUSING SAID IMAGE, MOVING
Claim 2
Independent Claim
83 words
THE METHOD OF MASKING OUT PORTIONS OF AN IMAGE TO PREVENT SAME FROM APPEARING ON A FILM IN A CAMERA WHEN SAID FILM IS EXPOSED WHICH COMPRISES; INSERTING A VIEWING GLASS IN THE POSITION TO BE OCCUPIED BY SAID FILM, PLACING A TRANSPARENT SHEET ADJACENT THE REAR FACE OF SAID GLASS, SECURING MASKING MATERIAL TO SAID SHEET TO COVER THE PORTIONS OF SAID IMAGE WHICH ARE TO BE MASKED OUT, MOVING SAID VIEWING GLASS OUT OF LINE WITH LIGHT CAUSING SAID IMAGE, MOVING
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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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |