Patent US3104280A successfully refreshed from Google Patents.
US3104280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subscription-television system
Assignee: Paramount Pictures Corp
•
Filing: 1960-12-20
•
Granted: 1963-09-17
•
Expires: 1980-12-20
Abstract
No abstract record available.
Inventors
- 👤 Carl A S Akrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:24
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/162; H04N7/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN A SUBSCRIPTION-TELEVISION SYSTEM OF THE TYPE WHEREIN THERE ARE TRANSMITTED TELEVISION PROGRAM SIGNALS MODULATED ON A CARRIER WHICH A COMMERICAL RECEIVER CANNOT PROCESS, BARKER AUDIO SIGNALS MODULATED ON A CARRIER AND A PILOT SIGNAL COMPRISING AN UNMODULATED CARRIER, AN ATTACHMENT FOR INTEGRATING A COMMERCIAL TELEVISION RECEIVER INTO SAID SUBSCRIPTION-TELEVISION SYSTEM COMPRISING MEANS FOR RECEIVING ALL SAID TRANSMITTED SIGNALS, MEANS FOR SELECTING ONE OF SAID BARKER AUDIO SIGNALS MODULATED ON A CARRIER TOGETHER WITH SAID PILOT SIGNAL, OR SAID TELEVISION-PROGRAM SIGNALS MODULATED ON A CARRIER, AND MEANS FOR TRANSLATING WHEN SELECTED SAID BARKER AUDIO SIGNALS MODULATED ON A CARRIER AND SAID PILOT SIGNAL TO CARRIER FREQUENCIES WHICH CAN BE PROCESSED BY A COMMERCIAL RECEIVER FOR REPRODUCING SAID BARKER AUDIO SIGNALS, AND WHEN SELECTED THE FREQUENCY OF THE CARRIER OF SAID TELEVISION PROGRAM SIGNALS TO A CARRIER FREQUENCY WHEREBY SAID PROGRAM SIGNALS CAN BE REPRODUCED BY A COMMERCIAL TELEVISION RECEIVER.
Claim 2
Dependent Claim
149 words
IN A SUBSCRIPTION-TELEVISION SYSTEM OF THE TYPE WHEREIN THERE ARE TRANSMITTED TELEVISION PROGRAM SIGNALS MODULATED ON A CARRIER WHICH A COMMERICAL RECEIVER CANNOT PROCESS, BARKER AUDIO SIGNALS MODULATED ON A CARRIER AND A PILOT SIGNAL COMPRISING AN UNMODULATED CARRIER, AN ATTACHMENT FOR INTEGRATING A COMMERCIAL TELEVISION RECEIVER INTO SAID SUBSCRIPTION-TELEVISION SYSTEM COMPRISING MEANS FOR RECEIVING ALL SAID TRANSMITTED SIGNALS, MEANS FOR SELECTING ONE OF SAID BARKER AUDIO SIGNALS MODULATED ON A CARRIER TOGETHER WITH SAID PILOT SIGNAL, OR SAID TELEVISION-PROGRAM SIGNALS MODULATED ON A CARRIER, AND MEANS FOR TRANSLATING WHEN SELECTED SAID BARKER AUDIO SIGNALS MODULATED ON A CARRIER AND SAID PILOT SIGNAL TO CARRIER FREQUENCIES WHICH CAN BE PROCESSED BY A COMMERCIAL RECEIVER FOR REPRODUCING SAID BARKER AUDIO SIGNALS, AND WHEN SELECTED THE FREQUENCY OF THE CARRIER OF SAID TELEVISION PROGRAM SIGNALS TO A CARRIER FREQUENCY WHEREBY SAID PROGRAM SIGNALS CAN BE REPRODUCED BY A COMMERCIAL TELEVISION RECEIVER.
References Cited (Backward Citations)
US2854506A
Cited
US2918522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |