US2609294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cinematographic matte
Assignee: —
•
Filing: —
•
Granted: 1952-09-02
•
Expires: 1969-09-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:01
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/04; G03C5/12; Y; Y10; Y10S; Y10S430/00; Y10S430/135; Y10S430/151
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
IN THE ART OF CINEMATOGRAPHY, THE METHOD OF PRINTING PHOTOGRAPHIC SILVER HALIDE EMULSION OF MOTION PICTURE FILN WHICH COMPRISES EXPOSING AREAS OF THE EMULSION WITH NORMAL EXPOSURE LIGHT OF SUCH CHARACTER AS TO PRODICE TRANSPARENT AREAS WITH OPAQUE LETTERING IN PARIS THEREOF, UNIFORMLY EXPOSING ALL SAID AREAS FROM THE EMULSION SIDE OF THE FILM IN SUCH MANNER AS TO EXPOSE PREDOMINANTLY THE GRAINS AT THE SURFACE OF THE EMULSION, AND DEVELOPING ALL SAID AREAS, THE UNIFORM EXPOSURE BEING SUFFICIENT TO PRODUCE A UNIFORM DENSITY OF SILVER OF AT LEAST APPROXIMATELY 0.12, WHEREBY IN RUNNING THE FILM THROUGH MACHINES THE STATIC ELECTRICTY MAY BE CONDUCTED AWAY FROM SAID OTHER AREAS BY SAID UNIFORM DENSITY OF SILVER WITHOUT INTERFERING WITH THE TRANSMISSION OF PICTURES THERETHROUGH.
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) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |