US2950971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple sound tracks
Assignee: Individual
•
Filing: 1957-12-17
•
Granted: 1960-08-30
•
Expires: 1977-12-17
Abstract
No abstract record available.
Inventors
- 👤 Lewin George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A MULTIPLE SOUND TRACK MEANS COMPRISING A BASE FILM UNIFORMLY TRANSPARENT TO LIGHT OF THE INFA-RED PORTION OF THE LIGHT SPECTRUM, AN EMULSION HAVING AN OPTICAL SOUND IMAGE THEREIN DEPOSITED UPON ONE SURFACE OF SAID BASE FILM PROVIDING AN OPTICAL SOUND TRACK TO MODULATE THE LIGHT OF SAID INFRA-RED PORTION OF THE LIGHT SPECTRUM AND MEANS COMPRISING MAGNETIC IRON OXIDE IN A BINDER THAT IS UNIFORMLY TRANSPARENT TO THE LIGHT OF SAID INFRARED PORTION OF THE LIGHT SPECTRUM DEPOSITED UPON SAID BASE FILM IN SUPERPOSED RELATION TO SAID EMULSION FOR PROVIDING A MAGNETIC SOUND TRACK, SAID MAGNETIC IRON OXIDE SOUND TRACK HAVING A SLIGHTLY GREATER TRANSVERSE WIDTH THAN SAID OPTICAL SOUND TRACK SO AS TO EXTEND BEYOND THE EDGES OF SAID OPTICAL SOUND TRACK.
Claim 2
Dependent Claim
124 words
A MULTIPLE SOUND TRACK MEANS COMPRISING A BASE FILM UNIFORMLY TRANSPARENT TO LIGHT OF THE INFA-RED PORTION OF THE LIGHT SPECTRUM, AN EMULSION HAVING AN OPTICAL SOUND IMAGE THEREIN DEPOSITED UPON ONE SURFACE OF SAID BASE FILM PROVIDING AN OPTICAL SOUND TRACK TO MODULATE THE LIGHT OF SAID INFRA-RED PORTION OF THE LIGHT SPECTRUM AND MEANS COMPRISING MAGNETIC IRON OXIDE IN A BINDER THAT IS UNIFORMLY TRANSPARENT TO THE LIGHT OF SAID INFRARED PORTION OF THE LIGHT SPECTRUM DEPOSITED UPON SAID BASE FILM IN SUPERPOSED RELATION TO SAID EMULSION FOR PROVIDING A MAGNETIC SOUND TRACK, SAID MAGNETIC IRON OXIDE SOUND TRACK HAVING A SLIGHTLY GREATER TRANSVERSE WIDTH THAN SAID OPTICAL SOUND TRACK SO AS TO EXTEND BEYOND THE EDGES OF SAID OPTICAL SOUND TRACK.
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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |