US3295408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical apparatus for adjusting copyto-image ratios in graphic arts photography
Assignee: MULTIPRINT Inc
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Filing: 1964-06-16
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Granted: 1967-01-03
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 William K Rab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:08
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A GRAPHIC ARTS CAMERA HAVING A GROUND GLASS, A LONGITUDINALLY MOVABLE LENSBOARD AND A LONGITUDINALLY MOVABLE COPYHOLDER, A SCALE APPLIED TO THE INNER SURFACE OF THE GROUND GLASS AT ONE SIDE OF A MAJOR AXIS THEREOF, A CORRESPONDING SCALE APPLIED TO THE COPYHOLDER AT A COMPLEMENTAL SIDE OF A MAJOR AXIS THEREOF, WHEREBY THE IMAGE OF THE COPYHOLDER SCALE MAY BE VIEWED IN SUPERPOSED RELATION TO THE GROUND GLASS SCALE, AND MEANS FOR ADJUSTING THE RELATIVE EXTENSIONS OF THE LENSBOARD AND THE COPYHOLDER, SO THAT SAID EXTENSIONS MAY BE ADJUSTED ACCORDING TO THE COPY-TO-IMAGE RATIO VISUALLY OBSERVABLE BY THE RELATIVE REGISTRATION OF INDICES OF THE SUPERPOSED SCALES ON THE GROUND GLASS.
Claim 2
Dependent Claim
112 words
IN A GRAPHIC ARTS CAMERA HAVING A GROUND GLASS, A LONGITUDINALLY MOVABLE LENSBOARD AND A LONGITUDINALLY MOVABLE COPYHOLDER, A SCALE APPLIED TO THE INNER SURFACE OF THE GROUND GLASS AT ONE SIDE OF A MAJOR AXIS THEREOF, A CORRESPONDING SCALE APPLIED TO THE COPYHOLDER AT A COMPLEMENTAL SIDE OF A MAJOR AXIS THEREOF, WHEREBY THE IMAGE OF THE COPYHOLDER SCALE MAY BE VIEWED IN SUPERPOSED RELATION TO THE GROUND GLASS SCALE, AND MEANS FOR ADJUSTING THE RELATIVE EXTENSIONS OF THE LENSBOARD AND THE COPYHOLDER, SO THAT SAID EXTENSIONS MAY BE ADJUSTED ACCORDING TO THE COPY-TO-IMAGE RATIO VISUALLY OBSERVABLE BY THE RELATIVE REGISTRATION OF INDICES OF THE SUPERPOSED SCALES ON THE GROUND GLASS.
References Cited (Backward Citations)
CH258023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |