US2606477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the projection of pictures in black and white or in color
Assignee: Twentieth Century Fox Film Corp
•
Filing: 1949-05-07
•
Granted: 1952-08-12
•
Expires: 1969-05-07
Abstract
No abstract record available.
Inventors
- 👤 Fred D Leslie
- 👤 Ralph D Whitmore
- 👤 Herbert E Bragg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
G; G03; G03B; G03B33/00
Claims Analysis
Total Claims: 0
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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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |