Patent US3553491A successfully refreshed from Google Patents.
Patent US3018178A successfully refreshed from Google Patents.
US3018178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating photographic material
Assignee: Individual
•
Filing: 1956-10-29
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Granted: 1962-01-23
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Expires: 1976-10-29
Abstract
No abstract record available.
Inventors
- 👤 Benjamin R Harriman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT CONSISTING OF A SINGLE INTEGRAL FILM AND A UNIFORM LAYER CONSISTING ESSENTIALLY OF A GELATIN-COLLOIDAL SILVER SUSPENSION CONTAINING A SURFACTANT CONSISTING ESSENTIALLY OF THE AMIDES FROM THE CONDENSATION OF AN ALIPHATIC ETHANOLAMINE HAVING AT LEAST ONE REACTIVE HYDROGEN ATOM ON THE NITROGEN ATOM THEREOF AND A FATTY ACID HAVING FROM 12 TO 22 CARBON ATOMS IN DIRECT CONTACT WITH SAID FILM AND FIRMLY ADHERED THERETO.
Claim 2
Dependent Claim
71 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT CONSISTING OF A SINGLE INTEGRAL FILM AND A UNIFORM LAYER CONSISTING ESSENTIALLY OF A GELATIN-COLLOIDAL SILVER SUSPENSION CONTAINING A SURFACTANT CONSISTING ESSENTIALLY OF THE AMIDES FROM THE CONDENSATION OF AN ALIPHATIC ETHANOLAMINE HAVING AT LEAST ONE REACTIVE HYDROGEN ATOM ON THE NITROGEN ATOM THEREOF AND A FATTY ACID HAVING FROM 12 TO 22 CARBON ATOMS IN DIRECT CONTACT WITH SAID FILM AND FIRMLY ADHERED THERETO.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |