US3271041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem rollers
Assignee: HUBER WARCO CO
•
Filing: 1964-07-15
•
Granted: 1966-09-06
•
Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Richard E Acker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:00
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/26; E01C19/266
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A ROAD ROLLER COMPRISING A FRAME, ROAD WORKING ROLLS MOUNTED ON SAID FRAME, A LEVER ARM PIVOTED AT ONE END TO SAID FRAME, A SOCKET AT THE OTHER END OF SAID LEVER ARM, A GROUND-ENGAGING TRAILLING WHEEL ROTATABLY MOUNTED ON A WHEEL SPINDLE, A HOLLOW WHEEL HUB EXTENSION REMOVABLY FIXED TO SAID WHEEL HUB SPINDLE AND PROJECTING INTO SAID SOCKET, MEANS TO RELEASABLY LOCK SAID EXTENSION WITHIN SAID SOCKET, MEANS TO MOVE SAID LEVER ARM BETWEEN A FIRST POSITION WHEREIN SAID WORKING ROLLS ENGAGE THE GROUND AND THE TRAILING WHEEL IS RETRACTED AND A SECOND POSITION WHEREIN THE TRAILING WHEEL ENGAGES THE GROUND AND THE
References Cited (Backward Citations)
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US2752832A
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |