US3219445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic processes
Assignee: Technical Operations Inc
•
Filing: 1962-04-09
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Granted: 1965-11-23
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Expires: 1982-04-09
Abstract
No abstract record available.
Inventors
- 👤 Valle James E Lu
- 👤 Gershon M Goldberg
- 👤 Ignatius E Theodorou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:03
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/496; G03C1/4965; G03C11/00; G03C11/12; G03C5/00; G03C5/26; G03C5/50; G03C8/00; G03C8/24; G03C8/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PHOTOGRAPHIC TRANSFER PROCESS COMPRISING THE STEPS OF: FORMING, BY EXPOSURE, A DEVELOPABLE LATENT IMAGE IN A BINDER-FREE, PARTICULATE STRATUM OF SILVER HALIDE MOUNTED ON A BASE MATERIAL; DEVELOPING SAID LATENT IMAGE TO FORM A SILVER IMAGE ON THE SURFACE OF SAID STRATUM; PLACING A RECEIVING ELEMENT AND SAID SILVER IMAGE IN SUCH INTIMATE CONTACT WITH ONE ANOTHER AS TO EFFECT ADHESION THEREBETWEEN; SEPARATING SAID ELEMENT WITH SUBSTANTIALLY ALL OF SAID SILVER IMAGE ADHERING THERETO IN SUBSTANTIALLY SILVER HALIDE-FREE FORM FROM THE UNDEVELOPED RESIDUAL SILVER STRATUM ON SAID BASE MATERIAL; AND REDUCING SAID RESIDUAL SILVER HALIDE STRATUM TO SILVER SO AS TO FORM A SECOND IMAGE WHICH IS THE REVERSE OF THE FIRST MENTIONED SILVER IMAGE.
Claim 2
Dependent Claim
116 words
A PHOTOGRAPHIC TRANSFER PROCESS COMPRISING THE STEPS OF: FORMING, BY EXPOSURE, A DEVELOPABLE LATENT IMAGE IN A BINDER-FREE, PARTICULATE STRATUM OF SILVER HALIDE MOUNTED ON A BASE MATERIAL; DEVELOPING SAID LATENT IMAGE TO FORM A SILVER IMAGE ON THE SURFACE OF SAID STRATUM; PLACING A RECEIVING ELEMENT AND SAID SILVER IMAGE IN SUCH INTIMATE CONTACT WITH ONE ANOTHER AS TO EFFECT ADHESION THEREBETWEEN; SEPARATING SAID ELEMENT WITH SUBSTANTIALLY ALL OF SAID SILVER IMAGE ADHERING THERETO IN SUBSTANTIALLY SILVER HALIDE-FREE FORM FROM THE UNDEVELOPED RESIDUAL SILVER STRATUM ON SAID BASE MATERIAL; AND REDUCING SAID RESIDUAL SILVER HALIDE STRATUM TO SILVER SO AS TO FORM A SECOND IMAGE WHICH IS THE REVERSE OF THE FIRST MENTIONED SILVER IMAGE.
References Cited (Backward Citations)
US1970496A
Cited
US2596754A
Cited
GB802041A
Cited
US2835575A
Cited
US2830900A
Cited
US2956877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |