US3276823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle supporting and drive unit with flexible rolling envelope
Assignee: Individual
•
Filing: 1964-11-09
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Granted: 1966-10-04
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Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Emmitt M Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/04; B62D55/06; B62D55/07; B62D55/08; B62D55/18; B62D55/24; B62D55/244; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A VEHICLE SUPPORTING AND DRIVE UNIT COMPRISING LONGITUDINALLY SPACED WHEELS, MEANS INCLUDING A FRAME MOUNTING THE WHEELS IN PREDETERMINED SPACED RELATION TO EACH OTHER, A FLEXIBLE NONPOROUS ENDLESS TRACK-FORMING BAND EXTENDING BETWEEN AND ENGAGING ABOUT THE WHEELS, AND FLEXIBLE AND STRETCHABLE NONPOROUS CURTAINS COVERING THE SIDE AREAS OUTLINED BY THE BAND AND SECURED TO THE SIDE EDGES THEREOF THROUGHOUT THEIR EXTENT; SAID CURTAINS TOGETHER WITH THE BAND FORMNG A FLEXIBLE ROLLING ENVELOPE ENCLOSING THE WHEELS AND FRAME, THE PERIPHERAL FACES OF THE WHEELS BEING TRANSVERSELY CURVED, AND THE SIDE PORTIONS OF THE BAND BEING CURVED TO CONFORM TO THE CURVATURE OF THE WHEEL FACES, THE CURTAINS BEING CLEAR OF SAID WHEEL FACES.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |