Patent US3072744A successfully refreshed from Google Patents.
US3072744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse transmission system
Assignee: Vitro Corp of America
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Filing: 1959-07-16
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Granted: 1963-01-08
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Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jr John O Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:16
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/002; H04B14/006
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
A SYSTEM FOR TRANSMITTING SUCCESSIVE ELECTRICAL PULSES OF OPPOSITE POLARITY COMPRISING AN EXTENDED TRANSMISSION LINE, A PLURALITY OF SPACED REPEATERS CONNECTED IN PARALLEL WITH THE LINE, EACH OF SAID REPEATERS INCLUDING A BISTABLE CIRCUIT SWITCHED FROM A FIRST STATE TO A SECOND STATE BY PULSES OF ONE POLARITY AND FROM THE SECOND STATE TO THE FIRST STATE BY PULSES OF THE OPPOSITE POLARITY, A DIFFERENTIATOR FOR COUPLING PULSES FROM THE TRANSMISSION LINE TO THE REPEATER TO OPERATE THE BISTABLE CIRCUIT UPON RECEIPT OF PROPER POLARITY PULSES, AND CIRCUIT MEANS RESPONSIVE TO THE OUTPUT OF THE BISTABLE CIRCUIT WHEN IT SWITCHES STATES TO SUPPLY TO THE LINE A PULSE OF THE SAME POLARITY AND GREATER AMPLITUDE THAN THE TRANSMISSION LINE PULSE COUPLED FROM THE LINE TO THE REPEATER, WHEREBY PULSES WILL BE TRANSMITTED ONLY IN A SELECTED DIRECTION ALONG THE LINE.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |