US3118145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier powered paging system
Assignee: Individual
•
Filing: 1960-01-11
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Granted: 1964-01-14
•
Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 Gilbert C Nee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:36
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; G08B3/1016; G08B3/1025; G08B3/1066
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
IN A PAGING SYSTEM, A CENTRAL STATION FOR TRANSMITTING PAGING SIGNALS HAVING A PLURALITY OF MODULATION FREQUENCIES AND A PLURALITY OF SIGNAL CARRIER FREQUENCIES, TRANSMITTER MEANS AT SAID CENTRAL STATION ADAPTED FOR RADIATING CARRIER ENERGY AT A PLURALITY OF SELECTABLE POWER CARRIER FREQUENCIES, A PLURALITY OF RECEIVERS EACH ADAPTED TO PROVIDE AN AUDIBLE PAGING SIGNAL IN RESPONSE TO ONLY A SINGLE COMBINATION OF ONE OF SAID PLURALITY OF MODULATION FREQUENCIES, ONE OF SAID PLURALITY OF SIGNAL CARRIER FREQUENCIES; AND SELECTOR MEANS AT SAID CENTRAL STATION FOR SELECTING THE COMBINATION OF MODULATION FREQUENCY, SIGNAL CARRIER FREQUENCY, AND POWER CARRIER FREQUENCY IN ORDER TO RENDER ONLY A SELECTED ONE OF SAID PLURALITY OF RECEIVERS OPERATIVE AND THEREBY PRODUCE SAID AUDIBLE PAGING SIGNAL.
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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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |