Patent US3186015A successfully refreshed from Google Patents.
US3186015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Street sweeper
Assignee: Elgin Sweeper Co
•
Filing: 1961-07-06
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Granted: 1965-06-01
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Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Beyerstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:23
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/047; E01H1/05; E01H1/053
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
IN A STREET SWEEPER HAVING A FRAME, THE COMBINATION COMPRISING A DUST BOX ADAPTED TO RECEIVE DIRT AND THE LIKE AT A POSITION WELL ABOVE STREET LEVEL, BRUSH MEANS FOR SWEEPING DIRT AND THE LIKE FROM THE STREET, AND ELEVATOR FOR RAISING THE SWEPT DIRT FROM STREET LEVEL TO DISCHARGE SAID DIRT INTO SAID DUST BOX, AN AXLE EXTENDING TRANSVERSELY OF SAID FRAME AND HAVING A DRIVING CONNECTION INTERMEDIATE THE ENDS THEREOF, DRIVING WHEELS ON SAID AXLE, AN ENGINE CARRIED BY SAID FRAME ON THE OPPOSITE SIDE OF SAID ELEVATOR FROM SAID AXLE, AND A DRIVE SHAFT EXTENDING THROUGH SAID ELEVATOR FROM SAID ENGINE TO SAID DRIVE CONNECTION ON SAID AXLE FOR DRIVING SAID SWEEPER.
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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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |