Patent US3288549A successfully refreshed from Google Patents.
US3288549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined film and slide projector
Assignee: INTERNAZ FONOVISIONE SpA SOC
•
Filing: 1964-02-12
•
Granted: 1966-11-29
•
Expires: 1984-02-12
Abstract
No abstract record available.
Inventors
- 👤 Angelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:18
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/06; G03B21/00; G03B21/14; G03B21/32; G03B31/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
PROJECTION APPARATUS COMPRISING A TRANSLUCENT SCREEN HAVING A FRONT SURFACE CONFRONTING THE VIEWER AND A REAR SURFACE; A MOTION PICTURE FILM PROJECTOR FOR PROJECTING MOTION PICTURE FILM IMAGES ONTO SAID REAR SURFACE OF SAID SCREEN INCLUDING FILM GUIDE MEANS FOR GUIDING FILM ALONG A PREDETERMINED PATH, ILLUMINATION MEANS ON ONE SIDE OF SAID PREDETERMINED PATH, AN ARM MOVABLE BETWEEN FIRST AND SECOND POSITIONS A PRESSURE ROLLER MOUNTED ON SAID MOVABLE ARM FOR ENGAGING SAID FILM AND HOLDING SAID FILM IN SAID PREDETERMINED PATH WHEN SAID ARM IS IN SAID FIRST POSITION; A SLIDE PROJECTOR COMPRISING LIGHT PROJECTOR MEANS FOR PROJECTING LIGHT AT SAID REAR SURFACE OF SAID SCREEN, A MOVABLE SLIDE HOLDER, MEANS FOR MOVING SAID SLIDE HOLDER FOR MOVING A SLIDE INTO AND OUT OF REGISTER WITH SAID LIGHT PROJECTING MEANS; MEANS FOR ENERGIZING SAID FILM PROJECTOR INCLUDING SAID MOVABLE ARM IN SAID FIRST POSITION, AND MEANS FOR ENERGIZING SAID SLIDE PROJECTOR INCLUDING SAID MOVABLE ARM IN SAID SECOND POSITION.
Claim 2
Dependent Claim
161 words
PROJECTION APPARATUS COMPRISING A TRANSLUCENT SCREEN HAVING A FRONT SURFACE CONFRONTING THE VIEWER AND A REAR SURFACE; A MOTION PICTURE FILM PROJECTOR FOR PROJECTING MOTION PICTURE FILM IMAGES ONTO SAID REAR SURFACE OF SAID SCREEN INCLUDING FILM GUIDE MEANS FOR GUIDING FILM ALONG A PREDETERMINED PATH, ILLUMINATION MEANS ON ONE SIDE OF SAID PREDETERMINED PATH, AN ARM MOVABLE BETWEEN FIRST AND SECOND POSITIONS A PRESSURE ROLLER MOUNTED ON SAID MOVABLE ARM FOR ENGAGING SAID FILM AND HOLDING SAID FILM IN SAID PREDETERMINED PATH WHEN SAID ARM IS IN SAID FIRST POSITION; A SLIDE PROJECTOR COMPRISING LIGHT PROJECTOR MEANS FOR PROJECTING LIGHT AT SAID REAR SURFACE OF SAID SCREEN, A MOVABLE SLIDE HOLDER, MEANS FOR MOVING SAID SLIDE HOLDER FOR MOVING A SLIDE INTO AND OUT OF REGISTER WITH SAID LIGHT PROJECTING MEANS; MEANS FOR ENERGIZING SAID FILM PROJECTOR INCLUDING SAID MOVABLE ARM IN SAID FIRST POSITION, AND MEANS FOR ENERGIZING SAID SLIDE PROJECTOR INCLUDING SAID MOVABLE ARM IN SAID SECOND POSITION.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |