US3144723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for tandem unconnected vehicles whereby rear vehicle controls work means of the forward vehicle
Assignee: Caterpillar Inc
•
Filing: 1961-03-01
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Granted: 1964-08-18
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Expires: 1981-03-01
Abstract
No abstract record available.
Inventors
- 👤 John W Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:16
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/651; E02F3/6454
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
IN A RADIO OPERATED REMOTE CONTROL SYSTEM THE COMBINATION COMPRISING; AN EARTH MOVING VEHICLE HAVING A MOVABLE MEMBER EMPLOYED TO PERFORM AN EARTH CONDITIONING FUNCTION; A SELF-MOTIVATING PUSHER VEHICLE FOR ASSISTING SAID EARTH MOVING VEHICLE BY FURNISHING ADDED MOTIVATING FORCE FROM BEHIND; RADIO SIGNALING MEANS ON SAID PUSHER VEHICLE; AND MEANS ON SAID EARTH MOVING VEHICLE RESPONSIVE TO SAID RADIO SIGNALING MEANS TO POSITION SAID MOVABLE MEMBER.
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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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |