Patent US2746812A successfully refreshed from Google Patents.
US2746812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic track
Assignee: Uniroyal Inc
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Filing: 1953-03-09
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Granted: 1956-05-22
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Expires: 1973-03-09
Abstract
No abstract record available.
Inventors
- 👤 Eger Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:53
CPC Classifications
B; B60; B60C; B60C3/00; B60C3/02; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/247; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10522; Y10T152/10576; Y10T152/10594; Y10T152/10603
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN INFLATABLE ENDLESS TRACK COMPRISING, AN ENDLESS RUBBER TUBE, A RUBBER COVER SURROUNDING SAID TUBE PROVIDING TREAD, SIDE WALL AND BASE PORTIONS, SUBSTANTIALLY INEXTENSIBLE FLEXIBLE, REINFORCING CORDS EMBEDDED IN THE BASE PORTION OF SAID COVER, SAID REINFORCING CORDS IN SAID BASE PORTION EXTENDING IN A SUBSTANTIALLY LONGITUDINAL DIREACTION TO THEREBY RENDER THE BASE PORTION SUBSTANTIALLY INEXTENSIBLE IN A LONGITUDINAL DIRECTION, SUBSTANTIALLY INEXTENSIBLE, FLEXIBLE, REINFORCING CORDS EXTENDING CIRCUMFERENTIALLY AROUND SAID TUBE AT AN ANGLE OF BETWEEN 60 AND 90 DEGREES TO THE LONGITUDINAL AXIS OF THE TUBE WHEREBY SAID REINFORCING CORDS RESTRAIN THE TUBE AGAINST RADIAL EXPANSION WITHOUT RESTRAINING THE TRACK AGAINST LONGITUDINAL STRETCHING AND MEANS FOR INFLATING SAID RUBBERTUBE.
Claim 2
Dependent Claim
109 words
AN INFLATABLE ENDLESS TRACK COMPRISING, AN ENDLESS RUBBER TUBE, A RUBBER COVER SURROUNDING SAID TUBE PROVIDING TREAD, SIDE WALL AND BASE PORTIONS, SUBSTANTIALLY INEXTENSIBLE FLEXIBLE, REINFORCING CORDS EMBEDDED IN THE BASE PORTION OF SAID COVER, SAID REINFORCING CORDS IN SAID BASE PORTION EXTENDING IN A SUBSTANTIALLY LONGITUDINAL DIREACTION TO THEREBY RENDER THE BASE PORTION SUBSTANTIALLY INEXTENSIBLE IN A LONGITUDINAL DIRECTION, SUBSTANTIALLY INEXTENSIBLE, FLEXIBLE, REINFORCING CORDS EXTENDING CIRCUMFERENTIALLY AROUND SAID TUBE AT AN ANGLE OF BETWEEN 60 AND 90 DEGREES TO THE LONGITUDINAL AXIS OF THE TUBE WHEREBY SAID REINFORCING CORDS RESTRAIN THE TUBE AGAINST RADIAL EXPANSION WITHOUT RESTRAINING THE TRACK AGAINST LONGITUDINAL STRETCHING AND MEANS FOR INFLATING SAID RUBBERTUBE.
References Cited (Backward Citations)
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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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |