US3359879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum frame utilizing air inbleed during exposure of photosensitive materials
Assignee: EIDP Inc
•
Filing: 1965-04-13
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Granted: 1967-12-26
•
Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 Hamlin James Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A VACUUM APPARATUS FOR PREPARING AN IMAGE-CONTAINING PHOTOPOLYMER ELEMENT FROM AN UNEXPOSED PHOTOPOLYMER ELEMENT IN CONTACT WITH THE MATTE SURFACE OF AN IMAGE-BEARING TRANSPARENCY WHICH APPARATUS COMPRISES (A) A BACKING SUPPORT HAVING TWO SEPARATE APERTURE AREAS ON THE SAME SURFACE OF SAID SUPPORT , (B) VACCUM MEANS CONNECTED TO ONE OF SAID APERTURE AREAS OF SAID SUPPORT, (C) VACUUM BLEED MEANS CONNECTED TO THE OTHER APERTURE
Claim 2
Dependent Claim
66 words
A VACUUM APPARATUS FOR PREPARING AN IMAGE-CONTAINING PHOTOPOLYMER ELEMENT FROM AN UNEXPOSED PHOTOPOLYMER ELEMENT IN CONTACT WITH THE MATTE SURFACE OF AN IMAGE-BEARING TRANSPARENCY WHICH APPARATUS COMPRISES (A) A BACKING SUPPORT HAVING TWO SEPARATE APERTURE AREAS ON THE SAME SURFACE OF SAID SUPPORT , (B) VACCUM MEANS CONNECTED TO ONE OF SAID APERTURE AREAS OF SAID SUPPORT, (C) VACUUM BLEED MEANS CONNECTED TO THE OTHER APERTURE
References Cited (Backward Citations)
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Cited
US2919635A
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US2988979A
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US2956769A
Cited
US2933014A
Cited
US3107078A
Cited
US3229953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |