US3278690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Communication system having common amplifier means
Assignee: Sta Rite Industries LLC
•
Filing: 1963-04-01
•
Granted: 1966-10-11
•
Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 John H Van Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:55
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN A COMMUNICATION SYSTEM, A CALLING STATION, A CALLED STATION, LINK MEANS DISPOSED BETWEEN THE CALLING AND CALLED STATIONS AND INCLUDING BOTH COMMON AMPLIFIER MEANS AND FINDER MEANS FOR EXTENDING A CONNECTION TO THE CALLING STATION, A SIGNALING CHANNEL INDIVIDUAL TO THE CALLING STATION AND SELECTED BY THE FINDER MEANS TO CONNECT THE CALLING STATION TO THE LINK MEANS, FIRST MEANS RESPONSIVE TO SIGNALS OF ONE POLARITY APPLIED TO THE SIGNALING CHANNEL FOR CONTROLLING THE SELECTION OF SAID CHAN-
Claim 2
Dependent Claim
79 words
IN A COMMUNICATION SYSTEM, A CALLING STATION, A CALLED STATION, LINK MEANS DISPOSED BETWEEN THE CALLING AND CALLED STATIONS AND INCLUDING BOTH COMMON AMPLIFIER MEANS AND FINDER MEANS FOR EXTENDING A CONNECTION TO THE CALLING STATION, A SIGNALING CHANNEL INDIVIDUAL TO THE CALLING STATION AND SELECTED BY THE FINDER MEANS TO CONNECT THE CALLING STATION TO THE LINK MEANS, FIRST MEANS RESPONSIVE TO SIGNALS OF ONE POLARITY APPLIED TO THE SIGNALING CHANNEL FOR CONTROLLING THE SELECTION OF SAID CHAN-
References Cited (Backward Citations)
US2146362A
Cited
US2266503A
Cited
US2662115A
Cited
US2715158A
Cited
US2908763A
Cited
US3023281A
Cited
US3134857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |