Patent US2976145A successfully refreshed from Google Patents.
US2976145A
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Photographic materials
Assignee: Kalvar Corp
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Filing: 1957-06-04
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Granted: 1961-03-21
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Expires: 1977-06-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert Baril
- 👤 Klein Elias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:34
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/60; C; C08; C08K; C08K5/00; C08K5/36; C08K5/45; C08K5/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PHOTOGRAPH MATERIAL CAPABLE OF FURNISHING A RECORD SOLELY IN THE FORM OF A DISTRIBUTION PATTERN OF RADIATION SCATTERING DISCONTINUITIES FORMED WITHIN AN OTHERWISE SUBSTANTIALLY HOMOGENEOUS VEHICLE, SAID VEHICLE CONSISTING ESSENTIALLY OF A SYNTHETIC, THERMOPLASTIC, WATERINSOLUBLE VINYLIDENE CHLORIDE POLYMER HAVING UNIFORMLY DISPERSED THEREIN, AS THE SOLE ESSENTIAL IMAGE PRODUCING AGENT, A PHOTOLYTIC DIAZONIUM COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
57 words
A PHOTOGRAPH MATERIAL CAPABLE OF FURNISHING A RECORD SOLELY IN THE FORM OF A DISTRIBUTION PATTERN OF RADIATION SCATTERING DISCONTINUITIES FORMED WITHIN AN OTHERWISE SUBSTANTIALLY HOMOGENEOUS VEHICLE, SAID VEHICLE CONSISTING ESSENTIALLY OF A SYNTHETIC, THERMOPLASTIC, WATERINSOLUBLE VINYLIDENE CHLORIDE POLYMER HAVING UNIFORMLY DISPERSED THEREIN, AS THE SOLE ESSENTIAL IMAGE PRODUCING AGENT, A PHOTOLYTIC DIAZONIUM COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
DE763721C
Cited
US2703756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |