Patent US2879176A successfully refreshed from Google Patents.
US2879176A
Expired / Lapsed
US
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Method of applying a magnetic sound track stripe to a film
Assignee: Reeves Soundcraft Corp
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Filing: 1950-12-09
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Granted: 1959-03-24
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Expires: 1970-12-09
Abstract
No abstract record available.
Inventors
- 👤 Ernest W Franck
- 👤 Stephen A Schettini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:39
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF APPLYING TO A FILM A MAGNETIC SOUND TRACK IN THE FORM OF A STRIPE OF LESS WIDTH THAN THE WIDTH OF THE FILM AND HAVING SUBSTANTILLY STRAIGHT EDGES, COMPRISING FLOWING ONTO SAID FILM A NARROW STRIPE OF A DISPERSION CONSISTING OF SOLID MAGNETIZABLE PARTICLES SUSPENDED IN A LIQUID CAPABLE OF WETTING SAID FILM AND SIMULTANEOUSLY THEREWITH WETTING THE FILM SURFACE ALONG EACH SIDE OF THE STRIP WITH SAID BINDER IN CONTINUOUS AREAS
Claim 2
Independent Claim
75 words
THE METHOD OF APPLYING TO A FILM A MAGNETIC SOUND TRACK IN THE FORM OF A STRIPE OF LESS WIDTH THAN THE WIDTH OF THE FILM AND HAVING SUBSTANTILLY STRAIGHT EDGES, COMPRISING FLOWING ONTO SAID FILM A NARROW STRIPE OF A DISPERSION CONSISTING OF SOLID MAGNETIZABLE PARTICLES SUSPENDED IN A LIQUID CAPABLE OF WETTING SAID FILM AND SIMULTANEOUSLY THEREWITH WETTING THE FILM SURFACE ALONG EACH SIDE OF THE STRIP WITH SAID BINDER IN CONTINUOUS AREAS
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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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |