Patent EP0468831A2 successfully refreshed from Google Patents.
Patent US2981625A successfully refreshed from Google Patents.
US2981625A
Expired / Lapsed
US
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Halftone camera
Assignee: Konica Minolta Graphic Imaging USA Inc
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Filing: 1958-05-26
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Granted: 1961-04-25
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Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Augustin J Powers
- 👤 Andrew K Anander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:37
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A HALFTONE CAMERA THE COMBINATION OF A HALFTONE SCREEN HAVING A CENTRAL PORTION AND AN OUTER PERIPHERIAL EDGE PORTION OF LESS THICKNESS THAN SAID CENTRAL PORTION WHEREBY THE FACE OF SAID CENTRAL PORTION LIES IN A PLANE EXTENDING BEYOND THE PLANE OF SAID EDGE PORTION, A RIGID PLANAR SURFACE FOR SUPPORTING PHOTO-SENSITIVE MATERIAL IN THE FOCAL PLANE OF THE CAMERA, A SUPPORTING MEANS FOR THE SCREEN, SAID SUPPORTING MEANS COMPRISING A FRAME DEFINING AN OPENING TO ACCOMODATE THE HALF TONE SCREEN, A PLURALITY OF ALIGNING MEMBERS FIXED TO THE FACE OF THE FRAME NEAREST THE RIGID PLANAR SURFACE AND EXTENDING INWARDLY OF THE OPENING AT SPACED INTERVALS AND DIRECTLY ENGAGING THE FACE OF THE CENTRAL PORTION OF THE HALFTONE
Claim 2
Dependent Claim
120 words
IN A HALFTONE CAMERA THE COMBINATION OF A HALFTONE SCREEN HAVING A CENTRAL PORTION AND AN OUTER PERIPHERIAL EDGE PORTION OF LESS THICKNESS THAN SAID CENTRAL PORTION WHEREBY THE FACE OF SAID CENTRAL PORTION LIES IN A PLANE EXTENDING BEYOND THE PLANE OF SAID EDGE PORTION, A RIGID PLANAR SURFACE FOR SUPPORTING PHOTO-SENSITIVE MATERIAL IN THE FOCAL PLANE OF THE CAMERA, A SUPPORTING MEANS FOR THE SCREEN, SAID SUPPORTING MEANS COMPRISING A FRAME DEFINING AN OPENING TO ACCOMODATE THE HALF TONE SCREEN, A PLURALITY OF ALIGNING MEMBERS FIXED TO THE FACE OF THE FRAME NEAREST THE RIGID PLANAR SURFACE AND EXTENDING INWARDLY OF THE OPENING AT SPACED INTERVALS AND DIRECTLY ENGAGING THE FACE OF THE CENTRAL PORTION OF THE HALFTONE
References Cited (Backward Citations)
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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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |