US3117299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for aircraft control of airport landking lights
Assignee: Individual
•
Filing: 1958-10-28
•
Granted: 1964-01-07
•
Expires: 1978-10-28
Abstract
No abstract record available.
Inventors
- 👤 Lester F Lemm
- 👤 Harry W Beeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:28
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0653; G05D1/0676; B; B64; B64F; B64F1/00; B64F1/18; B64F1/20; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
AIRPORT CONTROL APPARATUS FOR CONTROLLING A PREDETERMINED OPERATION IN RESPONSE TO THE INTERMITTENT RECEPTION OF A PREDETERMINED CARRIER FREQUENCY, SAID APPARATUS INCLUDING MEANS FOR GENERATING A PULSE OF A PREDETERMINED POLARITY EACH TIME THE RECEPTION OF THE CARRIER WAVE IS INITIATED, AN ELECTRONIC COUNTER CIRCUIT, MEANS FOR APPLYING SAID PULSES TO SAID COUNTER CIRCUIT, MEANS FOR PRODUCING AN OUTPUT SIGNAL IN RESPONSE TO THE RECEPTION BY SAID COUNTER CIRCUIT OF THE LAST ONE OF A PREDETERMINED NUMBER OF SAID PULSES, MEANS FOR DISABLING SAID OUTPUT SIGNAL MEANS UNLESS ALL OF SAID PREDETERMINED NUMBER OF PULSES ARE APPLIED TO SAID COUNTER WITHIN A PREDETERMINED TIME PERIOD, AND ADDITIONAL MEANS FOR DISABLING SAID OUTPUT SIGNAL MEANS IN RESPONSE TO THE APPLICATION OF AN EXCESS PULSE TO SAID COUNTER WITHIN SAID PREDETERMINED TIME.
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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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |