Patent US3285676A successfully refreshed from Google Patents.
US3285676A
Expired / Lapsed
US
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Rubber track
Assignee: Polaris Inc
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Filing: 1964-10-28
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Granted: 1966-11-15
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Expires: 1984-10-28
Abstract
No abstract record available.
Inventors
- 👤 Allan E Hetteen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:50
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/253; B62D55/104; B62D55/108; B62D55/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN ENDLESS TRACK COMPRISING: A PAIR OF SPACED APART CORRESPONDING ROLLER TYPE CHAINS FOR USE WITH SPROCKETS HAVING LINKS, RUBBER TREAD BARS POSITIONED BETWEEN SAID ROLLER TYPE MEANS, SAID ROLLER TYPE CHAINS HAVING APERTURES EXTENDING THROUGH THE ENDS OF THEIR LINKS, SAID RUBBER TREAD BARS HAVING PASSAGEWAYS EXTENDED LONGITUDINALLY THERETHROUGH AND SPACED THE SAME DISTANCE AS THE APERTURES IN SAID ROLLER TYPE CHAIN LINKS, RODS EXTENDED THROUGH AND SECURED IN THE APERTURES OF SAID ROLLER TYPE LINK CHAINS AND SAID LONGITUDINAL PASSAGEWAYS IN SAID TREAD BARS WHEREBY SAID ROLLER TYPE CHAINS ARE SECURED TOGETHER AND SAID TREAD BARS ARE SUPPORTED THEREBETWEEN, SAID RUBBER TREAD BARS HAVING AT LEAST ONE LONGITUDINAL OPENING THEREIN POSITIONED INTERMEDIATE OF SAID PASSAGEWAYS AND A STIFFENING MEMBER INSERTED IN SAID LONGITUDINAL OPENING IN EACH OF SAID RUBBER TREADS BARS AND HELD THEREIN BY LINKS OF SAID ROLLER TYPE CHAINS AT BOTH ENDS.
Claim 2
Dependent Claim
146 words
AN ENDLESS TRACK COMPRISING: A PAIR OF SPACED APART CORRESPONDING ROLLER TYPE CHAINS FOR USE WITH SPROCKETS HAVING LINKS, RUBBER TREAD BARS POSITIONED BETWEEN SAID ROLLER TYPE MEANS, SAID ROLLER TYPE CHAINS HAVING APERTURES EXTENDING THROUGH THE ENDS OF THEIR LINKS, SAID RUBBER TREAD BARS HAVING PASSAGEWAYS EXTENDED LONGITUDINALLY THERETHROUGH AND SPACED THE SAME DISTANCE AS THE APERTURES IN SAID ROLLER TYPE CHAIN LINKS, RODS EXTENDED THROUGH AND SECURED IN THE APERTURES OF SAID ROLLER TYPE LINK CHAINS AND SAID LONGITUDINAL PASSAGEWAYS IN SAID TREAD BARS WHEREBY SAID ROLLER TYPE CHAINS ARE SECURED TOGETHER AND SAID TREAD BARS ARE SUPPORTED THEREBETWEEN, SAID RUBBER TREAD BARS HAVING AT LEAST ONE LONGITUDINAL OPENING THEREIN POSITIONED INTERMEDIATE OF SAID PASSAGEWAYS AND A STIFFENING MEMBER INSERTED IN SAID LONGITUDINAL OPENING IN EACH OF SAID RUBBER TREADS BARS AND HELD THEREIN BY LINKS OF SAID ROLLER TYPE CHAINS AT BOTH ENDS.
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |