Patent US3200408A successfully refreshed from Google Patents.
US3200408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound motion picture synchronizing apparatus
Assignee: Bell and Howell Co
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Filing: 1961-03-20
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Granted: 1965-08-10
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert W Nordin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:30
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A SOUND MOTION PICTURE CAMERA, A MECHANISM PLATE, AN APERTURE PLATE AT ONE SIDE OF THE MECHANISM PLATE, A SHUTTLE FOR ADVANCING A FILM INTERMITTENTLY ALONG THE APERTURE PLATE,A SOUND DRUM FOR ADVANCING THE FILM CONTINOUSLY FROM THE APERTURE PLATE, A GUIDE MEANS LOCATED ADJACENT SAID APERTURE PLATE AND ADAPTED TO SUPPORT ONE LEG OF A FREE FILM LOOP BETWEEN THE APERTURE PLATE AND SOUND DRUM, SAID LOOP HAVING TWO LEGS AND AN ADJOINING CURVED PORTION, A FEELER MEMBER COMPRISING A ROLLER MOUNTED PIVOTALLY ON THE MECHANISM PLATE AND BIASED AGAINST THE EXTERIOR OF THE SECOND LEG OF SAID FILM LOOP AT A POINT SPACED FROM SAID CURVED PORTION, FIRST DRIVE MEANS FOR DRIVING THE SHUTTER INTERMITTENTLY, SECOND DRIVE MEANS FOR DRIVING THE SOUND DRUM CONTINUOUSLY, AND SPEED REGULATING MEANS RESPONSIVE TO THE VARIATIONS IN
Claim 2
Dependent Claim
136 words
IN A SOUND MOTION PICTURE CAMERA, A MECHANISM PLATE, AN APERTURE PLATE AT ONE SIDE OF THE MECHANISM PLATE, A SHUTTLE FOR ADVANCING A FILM INTERMITTENTLY ALONG THE APERTURE PLATE,A SOUND DRUM FOR ADVANCING THE FILM CONTINOUSLY FROM THE APERTURE PLATE, A GUIDE MEANS LOCATED ADJACENT SAID APERTURE PLATE AND ADAPTED TO SUPPORT ONE LEG OF A FREE FILM LOOP BETWEEN THE APERTURE PLATE AND SOUND DRUM, SAID LOOP HAVING TWO LEGS AND AN ADJOINING CURVED PORTION, A FEELER MEMBER COMPRISING A ROLLER MOUNTED PIVOTALLY ON THE MECHANISM PLATE AND BIASED AGAINST THE EXTERIOR OF THE SECOND LEG OF SAID FILM LOOP AT A POINT SPACED FROM SAID CURVED PORTION, FIRST DRIVE MEANS FOR DRIVING THE SHUTTER INTERMITTENTLY, SECOND DRIVE MEANS FOR DRIVING THE SOUND DRUM CONTINUOUSLY, AND SPEED REGULATING MEANS RESPONSIVE TO THE VARIATIONS IN
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |