US3328889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigational devices
Assignee: Individual
•
Filing: 1965-04-19
•
Granted: 1967-07-04
•
Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Malakowski Kazimerz
- 👤 Walczak Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:52
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/20; G01C21/22; G01C21/10; G01C21/12; G01C21/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A NAVIGATIONAL DEVICE FOR EXHIBITING A NAVIGATIONAL DISPLAY SHEET, THE DEVICE COMPRISING TWO CIRCULAR SETS OF ROLLERS, SAID SETS OF ROLLERS BEING ARRANGED ADJACENT EACH OTHER IN PARALLEL PLANES WITH SAID CIRCULAR SETS CONCENTRIC TO EACH OTHER AND OF SUBSTANTIALLY EQUAL INNER AND OUTER DIAMETERS, MEANS FOR SELECTIVELY URGING AT LEAST ONE ROLLER OF ONE SET TOWARDS AN OPPOSITE ROLLER OF THE OTHER SET TO CAUSE SAID ONE ROLLER AND SAID OPPOSITE ROLLER TO BEAR AGAINST OPPOSITE SIDES OF SAID NAVIGATIONAL DISPLAY SHEET, AND MEANS FOR ROTATING THE ROLLERS OF AT LEAST ONE OF SAID SETS IN DEPENDENCE ON THE RATE OF MOVEMENT OF A MOTOR VEHICLE FOR FRICTIONALLY DISPLAYING THE DISPLAY SHEET IN DEPENDENCE ON SAID RATE OF MOVEMENT AND IN A DIRECTION DETERMINED BY THE SELECTION OF SAID ONE ROLLER AND SAID OPPOSITE ROLLER.
Claim 2
Dependent Claim
136 words
A NAVIGATIONAL DEVICE FOR EXHIBITING A NAVIGATIONAL DISPLAY SHEET, THE DEVICE COMPRISING TWO CIRCULAR SETS OF ROLLERS, SAID SETS OF ROLLERS BEING ARRANGED ADJACENT EACH OTHER IN PARALLEL PLANES WITH SAID CIRCULAR SETS CONCENTRIC TO EACH OTHER AND OF SUBSTANTIALLY EQUAL INNER AND OUTER DIAMETERS, MEANS FOR SELECTIVELY URGING AT LEAST ONE ROLLER OF ONE SET TOWARDS AN OPPOSITE ROLLER OF THE OTHER SET TO CAUSE SAID ONE ROLLER AND SAID OPPOSITE ROLLER TO BEAR AGAINST OPPOSITE SIDES OF SAID NAVIGATIONAL DISPLAY SHEET, AND MEANS FOR ROTATING THE ROLLERS OF AT LEAST ONE OF SAID SETS IN DEPENDENCE ON THE RATE OF MOVEMENT OF A MOTOR VEHICLE FOR FRICTIONALLY DISPLAYING THE DISPLAY SHEET IN DEPENDENCE ON SAID RATE OF MOVEMENT AND IN A DIRECTION DETERMINED BY THE SELECTION OF SAID ONE ROLLER AND SAID OPPOSITE ROLLER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |