US3354428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating color filter single station range light
Assignee: Individual
•
Filing: 1965-04-20
•
Granted: 1967-11-21
•
Expires: 1985-04-20
Abstract
No abstract record available.
Inventors
- 👤 Theodore H Projector
- 👤 Robert S Rinkinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
G; G08; G08G; G08G9/00; G01; G01S; G01S1/00; G01S1/02; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A NAVIGATIONAL SINGLE STATION RANGE LIGHT COMPRISING A PROJECTION DEVICE AND MOVABLE DUAL FILTER HAVING TWO ADJACENT COLOR AREAS, MEANS FOR REPETITIVELY OSCILLATING SAID FILTER BETWEEN AT LEAST TWO POSITIONS SO THAT THE PROJECTED COLOR BEAMS THEREOF OSCILLATE BACK AND FORTH ACROSS A NAVIGATIONAL COURSE LINE TO FOLLOW, SAID MEANS COMPRISING A DEVICE FOR EFFECTING EQUAL DWELL TIMES FOR SAID BEAMS AT SAID POSITIONS.
References Cited (Backward Citations)
US1320308A
Cited
US2230853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |