US3253669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission and leveling controls for vehicles
Assignee: DROTT Manufacturing CORP
•
Filing: 1964-04-13
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Granted: 1966-05-31
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 John R Schuetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:28
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/20; E02F9/202; E02F9/2004; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/2022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN COMBINATION WITH A VEHICLE HAVING A LOWER FRAME, WHEELS SUPPORTING THE LOWER FRAME, AN ENGINE MOUNTED ON THE LOWER FRAME, A TRANSMISSION CONNECTING THE ENGINE TO THE WHEELS AND SHIFTABLE TO PRODUCE DIFFERENT DRIVING CONDITIONS, AND AN UPPER FRAME MOUNTED ON THE LOWER FRAME FOR TURNING ABOUT A VERTICAL AXIS, CONTROL MEANS FOR THE TRANSMISSION COMPRISING A FIRST ROCK BAR MOUNTED ON THE LOWER FRAME FOR ROCKING ABOUT A CENTRAL AXIS AND CONNECTED TO THE TRANSMISSION TO SHIFT IT, A SECOND ROCK BAR MOUNTED ON THE UPPER FRAME FOR ROCKING ABOUT A CENTRAL AXIS AND IN FACE TO FACE REGISTRATION WITH THE FIRST ROCK BAR IN ONE RELATIVE ANGULAR POSITION OF THE UPPER AND LOWER FRAMES, AND A CONTROL LEVER CONNECTED TO THE SECOND ROCK BAR TO ROCK IT THEREBY TO SHIFT THE TRANSMISSION.
Claim 2
Dependent Claim
135 words
IN COMBINATION WITH A VEHICLE HAVING A LOWER FRAME, WHEELS SUPPORTING THE LOWER FRAME, AN ENGINE MOUNTED ON THE LOWER FRAME, A TRANSMISSION CONNECTING THE ENGINE TO THE WHEELS AND SHIFTABLE TO PRODUCE DIFFERENT DRIVING CONDITIONS, AND AN UPPER FRAME MOUNTED ON THE LOWER FRAME FOR TURNING ABOUT A VERTICAL AXIS, CONTROL MEANS FOR THE TRANSMISSION COMPRISING A FIRST ROCK BAR MOUNTED ON THE LOWER FRAME FOR ROCKING ABOUT A CENTRAL AXIS AND CONNECTED TO THE TRANSMISSION TO SHIFT IT, A SECOND ROCK BAR MOUNTED ON THE UPPER FRAME FOR ROCKING ABOUT A CENTRAL AXIS AND IN FACE TO FACE REGISTRATION WITH THE FIRST ROCK BAR IN ONE RELATIVE ANGULAR POSITION OF THE UPPER AND LOWER FRAMES, AND A CONTROL LEVER CONNECTED TO THE SECOND ROCK BAR TO ROCK IT THEREBY TO SHIFT THE TRANSMISSION.
References Cited (Backward Citations)
US1879218A
Cited
US2855110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |