Patent US3926488A successfully refreshed from Google Patents.
Patent US3234891A successfully refreshed from Google Patents.
US3234891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highway vehicle with rail guide wheel means
Assignee: Pneuways Development Co Pvt Ltd
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Filing: 1961-07-25
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Granted: 1966-02-15
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Expires: 1981-07-25
Abstract
No abstract record available.
Inventors
- 👤 Verner W Hampton
- 👤 Norman H F Renwick
- 👤 George D Green
- 👤 Thomas A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:09
CPC Classifications
B; B62; B62D; B62D1/00; B62D1/24; B62D1/26; B62D1/265; B61; B61F; B61F9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A VEHICLE ROAD WHEEL AND GUIDING MEANS COMPRISING A WHEEL, A MEMBER ATTACHED TO SAID WHEEL FOR ROTATION THEREWITH, BEARINGS LOCATED IN SAID MEMBER, A SECOND MEMBER MOUNTED IN SAID BEARINGS, A PIVOTAL CONNECTION IN SAID SECOND MEMBER DISPOSED SUBSTANTIALLY HORIZONTALLY AND PARALLEL TO THE PLANE OF ROTATION OF SAID WHEEL, AN ARM MOUNTED IN SAID PIVOTAL CONNECTION, A GUIDE WHEEL CONNECTED TO SAID ARM FOR ROTATION ON SAID AXIS SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL DIRECTION OF SAID ARM AND BIASSING MEANS FOR APPLYING A RESILIENT PRESSURE TO SAID GUIDE WHEEL INWARDLY ABOUT SAID AXIS AND TOWARDS THE PLANE OF ROTATION OF SAID WHEEL.
Claim 2
Dependent Claim
104 words
A VEHICLE ROAD WHEEL AND GUIDING MEANS COMPRISING A WHEEL, A MEMBER ATTACHED TO SAID WHEEL FOR ROTATION THEREWITH, BEARINGS LOCATED IN SAID MEMBER, A SECOND MEMBER MOUNTED IN SAID BEARINGS, A PIVOTAL CONNECTION IN SAID SECOND MEMBER DISPOSED SUBSTANTIALLY HORIZONTALLY AND PARALLEL TO THE PLANE OF ROTATION OF SAID WHEEL, AN ARM MOUNTED IN SAID PIVOTAL CONNECTION, A GUIDE WHEEL CONNECTED TO SAID ARM FOR ROTATION ON SAID AXIS SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL DIRECTION OF SAID ARM AND BIASSING MEANS FOR APPLYING A RESILIENT PRESSURE TO SAID GUIDE WHEEL INWARDLY ABOUT SAID AXIS AND TOWARDS THE PLANE OF ROTATION OF SAID WHEEL.
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |