US3224407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor vehicle
Assignee: Individual
•
Filing: 1964-10-27
•
Granted: 1965-12-21
•
Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Paul A Bertrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:14
CPC Classifications
B; B62; B62D; B62D57/00; B62D57/02; B62D57/036; B62D49/00; B62D49/06; B62D49/0607; B62D49/0621; B62D49/0635
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A VEHICLE COMPRISING A CHASSIS, A LOAD-BEARING PLATFORM MOUNTED ON SAID CHASSIS, AND PROPULSION MEANS FOR SAID VEHICLE COMPRISING A PAIR OF TRACTION DEVICES EACH HAVING A CYLINDER AND A HELICAL BLADE THEREON, EACH SAID CYLINDER HAVING AXIAL SPINDLES AND A PAIR OF SUPPORTING FRAMES HAVING SAID SPINDLES JOURNALLED THEREIN, EACH SAID PAIR OF SUPPORTING FRAMES BEING PIVOTALLY MOUNTED ON SAID CHASSIS ON AN AXIS PARALLEL TO THE AXIS OF SAID CYLINDERS AND EXTENDING LONGITUDINALLY OF SAID VEHICLE, MEANS FOR APPLYING ROTATIVE MOVEMENT TO SAID
Claim 2
Dependent Claim
85 words
A VEHICLE COMPRISING A CHASSIS, A LOAD-BEARING PLATFORM MOUNTED ON SAID CHASSIS, AND PROPULSION MEANS FOR SAID VEHICLE COMPRISING A PAIR OF TRACTION DEVICES EACH HAVING A CYLINDER AND A HELICAL BLADE THEREON, EACH SAID CYLINDER HAVING AXIAL SPINDLES AND A PAIR OF SUPPORTING FRAMES HAVING SAID SPINDLES JOURNALLED THEREIN, EACH SAID PAIR OF SUPPORTING FRAMES BEING PIVOTALLY MOUNTED ON SAID CHASSIS ON AN AXIS PARALLEL TO THE AXIS OF SAID CYLINDERS AND EXTENDING LONGITUDINALLY OF SAID VEHICLE, MEANS FOR APPLYING ROTATIVE MOVEMENT TO SAID
References Cited (Backward Citations)
US3123039A
Cited
US1087372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |