US2945771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of light-sensitive layers on photographic films
Assignee: Individual
•
Filing: 1955-05-03
•
Granted: 1960-07-19
•
Expires: 1975-05-03
Abstract
No abstract record available.
Inventors
- 👤 Mansfeld Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/562; C23C14/02; C23C14/024; C23C14/025; C23C14/06; C23C14/0694; G; G03; G03C; G03C1/00; G03C1/494; G03C1/496; G03C1/4965; Y; Y10; Y10S; Y10S430/00; Y10S430/133; Y10S430/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS OF PRODUCING A PHOTOGRAPHIC PHOTOSENSITIVE LAYER ON A CARRIER BASE, COMPRISING THE STEPS OF VAPORIZING BY HEATING UNDER A VACUUM SILVER AND BROMINE TO FORM VAPORS THEREOF, DIRECTING ONTO SAID BASE SAID VAPORS FOR CHEMICAL INTER-REACTION, WHILE UNDIRECTIONALLY AND SUBSTANTIALLY CONTINUOUSLY MOVING SAID BASE WITHIN SAID VACUUM AT PREDETERMINED SPEED, AND BRINGING TO CONDENSATION SAID VAPORS TO THEREBY FORM SILVER BROMIDE ON SAID BASE.
Claim 2
Dependent Claim
66 words
A PROCESS OF PRODUCING A PHOTOGRAPHIC PHOTOSENSITIVE LAYER ON A CARRIER BASE, COMPRISING THE STEPS OF VAPORIZING BY HEATING UNDER A VACUUM SILVER AND BROMINE TO FORM VAPORS THEREOF, DIRECTING ONTO SAID BASE SAID VAPORS FOR CHEMICAL INTER-REACTION, WHILE UNDIRECTIONALLY AND SUBSTANTIALLY CONTINUOUSLY MOVING SAID BASE WITHIN SAID VACUUM AT PREDETERMINED SPEED, AND BRINGING TO CONDENSATION SAID VAPORS TO THEREBY FORM SILVER BROMIDE ON SAID BASE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |