US3749486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film strip
Assignee: Individual
•
Filing: 1970-07-29
•
Granted: 1973-07-31
•
Expires: 1990-07-29
Abstract
Abstract Sensitized and unsensitized transparent film material in sprocket-hole punched form is provided together with means to indicate the area encompassed by a frame such that the film material can then be utilized in still projection devices. In one preferred embodiment a sheet of film material is formed with a plurality of sprocket-hole punched strips separated from each other by perforations in the sheet.
Inventors
- 👤 K Smukler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:54
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
44 words
A transparent film having parallel rows of spaced apart sprocket holes formed therein and a backing sheet having a plurality of frames printed thereon for indicating areas between said sprocket holes encompassed by a single frame of a projection device for projecting said film.
Claim 2
Dependent Claim
44 words
A transparent film having parallel rows of spaced apart sprocket holes formed therein and a backing sheet having a plurality of frames printed thereon for indicating areas between said sprocket holes encompassed by a single frame of a projection device for projecting said film.
Claim 3
Dependent Claim
18 words
The combination of claim 1 wherein said backing sheet is affixed at an end thereof to said film.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |