US3082405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical systems
Assignee: Individual
•
Filing: 1958-10-15
•
Granted: 1963-03-19
•
Expires: 1978-10-15
Abstract
No abstract record available.
Inventors
- 👤 Richard J Hanak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:03
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/02; H04W88/022; H04W88/025; H04W88/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A SIGNALLING SYSTEM COMPRISING: MEANS FOR TRANSMITTING IN A PREDETERMINED SEQUENCE A PLURALITY OF SIGNAL WAVES HAVING DIFFERENT FREQUENCIES WHICH RESPECTIVELY REPRESENT SELECTED CHARACTERS, MEANS FOR RECEIVING SAID TRANSMITTED SIGNAL WAVES, SAID RECEIVING MEANS INCLUDING MEANS RESPONSIVE TO SAID SIGNAL WAVES FOR PRODUCING DIFFERENT VOLTAGE WAVES RESPECTIVELY REPRESENTATIVE OF THE DIFFERENT FREQUENCIES OF SAID SIGNAL WAVES, AND MEANS SELECTIVELY RESPONSIVE TO SAID DIFFERENT VOLTAGE WAVES FOR PRODUCING AN OUTPUT SIGNAL ONLY WHEN SAID TRANSMITTED SIGNAL WAVES HAVE SELECTED FREQUENCIES AND OCCUR IN SAID SEQUENCE.
Claim 2
Dependent Claim
84 words
A SIGNALLING SYSTEM COMPRISING: MEANS FOR TRANSMITTING IN A PREDETERMINED SEQUENCE A PLURALITY OF SIGNAL WAVES HAVING DIFFERENT FREQUENCIES WHICH RESPECTIVELY REPRESENT SELECTED CHARACTERS, MEANS FOR RECEIVING SAID TRANSMITTED SIGNAL WAVES, SAID RECEIVING MEANS INCLUDING MEANS RESPONSIVE TO SAID SIGNAL WAVES FOR PRODUCING DIFFERENT VOLTAGE WAVES RESPECTIVELY REPRESENTATIVE OF THE DIFFERENT FREQUENCIES OF SAID SIGNAL WAVES, AND MEANS SELECTIVELY RESPONSIVE TO SAID DIFFERENT VOLTAGE WAVES FOR PRODUCING AN OUTPUT SIGNAL ONLY WHEN SAID TRANSMITTED SIGNAL WAVES HAVE SELECTED FREQUENCIES AND OCCUR IN SAID SEQUENCE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |