US3074059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-sequence pulse code transmitter
Assignee: Individual
•
Filing: 1956-08-16
•
Granted: 1963-01-15
•
Expires: 1976-08-16
Abstract
No abstract record available.
Inventors
- 👤 Jr David B Flavan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/26; H04M1/27; H04M1/274
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
AN AUTOMATIC TELEPHONE DIALING SYSTEM COMPRISING A TRANSMISSION LINE; A PLURALITY OF FIRST AND SECOND ELECTRICAL CIRCUITS; MEANS FOR SIMULTANEOUSLY CHANGING THE CONDUCTIVE CHARACTERISTICS OF EACH OF SAID FIRST ELECTRICAL CIRCUITS IN DIFFERENT PREDETERMINED PATTERNS, SAID MEANS CAUSING SAID CHANGES IN CONDUCTIVE CHARACTERISTICS TO BE REPEATED AT LEAST A NUMBER OF TIMES EQUAL TO THE NUMBER OF SAID SECOND ELECTRICAL CIRCUITS, AND MEANS FOR ELECTRICALLY INTERCONNECTING SELECTED ONES OF SAID FIRST ELECTRICAL CIRCUITS WITH SAID LINE SEPARATELY DURING THE FIRST AND EACH RE PEATED CHANGE IN CONDUCTIVE CHARACTERISTICS OF SAID FIRST CIRCUITS, SAID LAST MENTIONED MEANS BEING ARRANGED TO SELECTIVELY INTERCONNECT SAID FIRST CIRCUITS WITH SAID LINE IN A PREDETERMINED SEQUENCE.
Claim 2
Dependent Claim
111 words
AN AUTOMATIC TELEPHONE DIALING SYSTEM COMPRISING A TRANSMISSION LINE; A PLURALITY OF FIRST AND SECOND ELECTRICAL CIRCUITS; MEANS FOR SIMULTANEOUSLY CHANGING THE CONDUCTIVE CHARACTERISTICS OF EACH OF SAID FIRST ELECTRICAL CIRCUITS IN DIFFERENT PREDETERMINED PATTERNS, SAID MEANS CAUSING SAID CHANGES IN CONDUCTIVE CHARACTERISTICS TO BE REPEATED AT LEAST A NUMBER OF TIMES EQUAL TO THE NUMBER OF SAID SECOND ELECTRICAL CIRCUITS, AND MEANS FOR ELECTRICALLY INTERCONNECTING SELECTED ONES OF SAID FIRST ELECTRICAL CIRCUITS WITH SAID LINE SEPARATELY DURING THE FIRST AND EACH RE PEATED CHANGE IN CONDUCTIVE CHARACTERISTICS OF SAID FIRST CIRCUITS, SAID LAST MENTIONED MEANS BEING ARRANGED TO SELECTIVELY INTERCONNECT SAID FIRST CIRCUITS WITH SAID LINE IN A PREDETERMINED SEQUENCE.
References Cited (Backward Citations)
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Cited
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US2255201A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |