US3076059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signaling system
Assignee: AT&T Inc
•
Filing: 1958-06-20
•
Granted: 1963-01-29
•
Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Larned A Meacham
- 👤 Schenker Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:54
CPC Classifications
H; H04; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/44; H04Q1/444; H04Q1/45; H04Q1/453
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A SIGNALING SYSTEM COMPRISING MEANS FOR GENERATING INDIVIDUAL BURSTS OF MULTIFREQUENCY SIGNALS, EACH OF SAID INDIVIDUAL BURSTS COMPRISING A PLURALITY OF WAVES SEVERALLY SELECTED FROM SEPARATE GROUPS OF WAVES OF DISPARATE FREQUENCIES, A TRANSMISSION MEDIUM, MEANS FOR ENERGIZING SAID MEDIUM WITH SAID BURSTS, AND A SIGNAL RECEIVER COUPLED TO SAID MEDIUM FOR SENSING SAID BURSTS, SAID RECEIVER COMPRISING A PLURALITY OF BAND ELIMINATION FILTERS, EACH FILTER BEING CONSTRUCTED TO ATTENUATE THE WAVES OF ALL BUT A SELECTED ONE OF SAID GROUPS AND TO ALLOW SUB-
Claim 2
Dependent Claim
85 words
A SIGNALING SYSTEM COMPRISING MEANS FOR GENERATING INDIVIDUAL BURSTS OF MULTIFREQUENCY SIGNALS, EACH OF SAID INDIVIDUAL BURSTS COMPRISING A PLURALITY OF WAVES SEVERALLY SELECTED FROM SEPARATE GROUPS OF WAVES OF DISPARATE FREQUENCIES, A TRANSMISSION MEDIUM, MEANS FOR ENERGIZING SAID MEDIUM WITH SAID BURSTS, AND A SIGNAL RECEIVER COUPLED TO SAID MEDIUM FOR SENSING SAID BURSTS, SAID RECEIVER COMPRISING A PLURALITY OF BAND ELIMINATION FILTERS, EACH FILTER BEING CONSTRUCTED TO ATTENUATE THE WAVES OF ALL BUT A SELECTED ONE OF SAID GROUPS AND TO ALLOW SUB-
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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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |