US3286040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Call transmitter employing a code bearing medium
Assignee: AT&T Inc
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Filing: 1963-10-31
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Granted: 1966-11-15
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Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Andregg
- 👤 Harold J Hershey
- 👤 Chester W Mcgee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:11
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274; H04M1/278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A CALL TRANSMITTER EMPLOYING A CODE BEARING MEDIUM HAVING A PLURALITY OF DIGITS ENCODED THEREON, THE CALL TRANSMITTER COMPRISING: A PLURALITY OF SWITCHES; MEANS ASSOCIATED WITH EACH OF THE SWITCHES FOR SENSING THE CODING ON THE CODE BEARING MEDIUM, THE SENSING MEANS BEING NORMALLY SPACED FROM THE CODE BEARING MEDIUM; MEANS ASSOCIATED WITH EACH SENSING MEANS FOR MOVING THE SENSING MEANS TOWARD THE CODE BEARING MEDIUM IN A PARTICULAR SENSING SEQUENCE, EACH SENSING MEANS ACTUATING ITS ASSOCIATED SWITCH RESPONSIVE TO CODING ON THE CODE BEARING MEDIUM; MEANS UNDER THE CONTROL OF THE ACTUATED SWITCHES FOR GENERATING SIGNALS CORRESPONDING TO THE ENCODED DIGITS AND TRANSMITTING THE SIGNALS OUT ON A COMMUNICAION LINE; AND MEANS UNDER THE CONTROL OF THE ACTUATED SWITCHES FOR CHANGING THE SPEED AT WHICH THE SIGNAL GENERATING MEANS OPERATES.
Claim 2
Dependent Claim
131 words
A CALL TRANSMITTER EMPLOYING A CODE BEARING MEDIUM HAVING A PLURALITY OF DIGITS ENCODED THEREON, THE CALL TRANSMITTER COMPRISING: A PLURALITY OF SWITCHES; MEANS ASSOCIATED WITH EACH OF THE SWITCHES FOR SENSING THE CODING ON THE CODE BEARING MEDIUM, THE SENSING MEANS BEING NORMALLY SPACED FROM THE CODE BEARING MEDIUM; MEANS ASSOCIATED WITH EACH SENSING MEANS FOR MOVING THE SENSING MEANS TOWARD THE CODE BEARING MEDIUM IN A PARTICULAR SENSING SEQUENCE, EACH SENSING MEANS ACTUATING ITS ASSOCIATED SWITCH RESPONSIVE TO CODING ON THE CODE BEARING MEDIUM; MEANS UNDER THE CONTROL OF THE ACTUATED SWITCHES FOR GENERATING SIGNALS CORRESPONDING TO THE ENCODED DIGITS AND TRANSMITTING THE SIGNALS OUT ON A COMMUNICAION LINE; AND MEANS UNDER THE CONTROL OF THE ACTUATED SWITCHES FOR CHANGING THE SPEED AT WHICH THE SIGNAL GENERATING MEANS OPERATES.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |