Patent US3721025A successfully refreshed from Google Patents.
US3721025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power driven snow blower
Assignee: POLORON PROD OF INDIANA Inc
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Filing: 1969-03-13
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Granted: 1973-03-20
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Expires: 1989-03-13
Abstract
Abstract A SNOW BLOWER FOR ATTACHMENT TO A TRACTOR HAVING COUNTER ROTATING BLOWERS AND TWO SETS OF AUGERS SUPPORTED BY A UNITARY HOUSING. THE SNOW BLOWER ISPROVIDED WITH REARWARDLY EXTENDING ARMS SECURED TO A SUPPORT ASSEMBLY REMOVABLY ATTACHED TO THE TRACTOR. THE SUPPORT ASSEMBLY INCLUDES MEANS FOR TRANSMITTING POWER FROM THE TRACTOR ENGINE TO THE SNOW BLOWER AS WELL AS MEANS FOR RAISING AND LOWERING THE BLOWER RELATIVE TO THE TRACTOR, LOCKING THE BLOWER IN THE RAISED POSITION AND ADJUSTING THE HEIGHT OF THE BLOWER FROM THE SURFACE BEING CLEARED.
Inventors
- 👤 M Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:55
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/08; E01H5/09; E01H5/098
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |