Patent US3235838A successfully refreshed from Google Patents.
US3235838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote-operated radio receiving apparatus
Assignee: Individual
•
Filing: 1960-03-30
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Granted: 1966-02-15
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Expires: 1980-03-30
Abstract
No abstract record available.
Inventors
- 👤 Paul H Hilt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:25
CPC Classifications
G; G08; G08G; G08G5/00; G08G5/20; G08G5/26; G08B; G08B5/00; G08B5/02; G08G5/22; G08G5/50; G08G5/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN AUTOMATIC RUNWAY LIGHTING SYSTEM FOR TURNING ON AND EXTINGUISHING THE LIGHTS OF AN AIRPORT RUNWAY UPON THE RECEPTION OF A PREDETERMINED NUMBER OF SHORT UNMODULATED CARRIER PULSES IN EXCESS OF TWO FROM AN ORDINARY AIRCRAFT VOICE COMMUNICATIONS TRANSMITTER WITHIN A FIXED TIME PERIOD COMPRISING A RADIO RECEIVER TUNED TO THE FREQUENCY OF SAID TRANSMITTER AND OPERABLE TO PROVIDED AN OUTPUT VOLTAGE DURING THE RECEPTION OF ONE OF SAID UNMODULATED CARRIER PULSES TRANSMITTED BY SAID TRANSMITTER, RESETTABLE PULSE COUNTING MEANS CONNECTED FOR OPERATION UPON THE OCCURRENCE OF SAID VOLTAGE TO EFFECT A FIRST CIRCUIT CHANGE UPON THE OCCURRENCE OF THE FIRST OF SAID PULSES AND OPERABLE TO EFFECT A SECOND CIRCUIT CHANGE UPON THE OCCURRENCE OF THE FINAL ONE OF SAID PREDETERMINED NUMBER OF PULSES WITHIN SAID FIXED TIME PERIOD, COUNTER CANCELLATION MEANS INCLUDING A TIMER FOR MEASURING SAID TIME PERIOD AND INITIATED UPON THE OCCURRENCE OF SAID FIRST CIRCUIT CHANGE ONLY AND BEING UNAFFECTED BY ANY FURTHER SAID CIRCUIT CHANGES AND CONNECTED TO SAID COUNTER MEANS
Claim 2
Dependent Claim
167 words
AN AUTOMATIC RUNWAY LIGHTING SYSTEM FOR TURNING ON AND EXTINGUISHING THE LIGHTS OF AN AIRPORT RUNWAY UPON THE RECEPTION OF A PREDETERMINED NUMBER OF SHORT UNMODULATED CARRIER PULSES IN EXCESS OF TWO FROM AN ORDINARY AIRCRAFT VOICE COMMUNICATIONS TRANSMITTER WITHIN A FIXED TIME PERIOD COMPRISING A RADIO RECEIVER TUNED TO THE FREQUENCY OF SAID TRANSMITTER AND OPERABLE TO PROVIDED AN OUTPUT VOLTAGE DURING THE RECEPTION OF ONE OF SAID UNMODULATED CARRIER PULSES TRANSMITTED BY SAID TRANSMITTER, RESETTABLE PULSE COUNTING MEANS CONNECTED FOR OPERATION UPON THE OCCURRENCE OF SAID VOLTAGE TO EFFECT A FIRST CIRCUIT CHANGE UPON THE OCCURRENCE OF THE FIRST OF SAID PULSES AND OPERABLE TO EFFECT A SECOND CIRCUIT CHANGE UPON THE OCCURRENCE OF THE FINAL ONE OF SAID PREDETERMINED NUMBER OF PULSES WITHIN SAID FIXED TIME PERIOD, COUNTER CANCELLATION MEANS INCLUDING A TIMER FOR MEASURING SAID TIME PERIOD AND INITIATED UPON THE OCCURRENCE OF SAID FIRST CIRCUIT CHANGE ONLY AND BEING UNAFFECTED BY ANY FURTHER SAID CIRCUIT CHANGES AND CONNECTED TO SAID COUNTER MEANS
References Cited (Backward Citations)
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |