US3213552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snowplow
Assignee: Individual
•
Filing: 1963-06-07
•
Granted: 1965-10-26
•
Expires: 1983-06-07
Abstract
No abstract record available.
Inventors
- 👤 Vanvick Isak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/08; E01H5/09; E01H5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A ROTARY SNOWPLOW ADAPTED TO MOVE OVER A SUPPORTING SURFACE COMPRISING AN OUTER HOUSING, SAID HOUSING BEING COMPRISED OF TWO HOUSING SECTIONS, EACH BEING OF FRUSTO-CONICAL SHAPE WITH THEIR MAJOR DIAMETER PORTIONS JOINED IN THE CENTER OF THE HOUSING AND THEIR MINOR DIAMETER PROTIONS AT THE OUTER ENDS THEREOF, SAID HOUSING HAVING A FORWARDLY DIRECTED OPENING, A SNOW FEEDING AUGER OF SUBSTANTIALLY THE SAME SIZE AND SHAPE AS SAID HOUSING ROTATABLY MOUNTED IN SAID HOUSING, SAID SNOW FEEDING AUGER HAVING BLOWER PORTION IN THE CENTER THEREOF, A PAIR OF TRANSITION PLATES EACH TANGENT TO ONE OF THE FRUSTO-CONICAL SECTIONS OF SAID HOUSING, AND CUTTER BAR MEANS ATTACHED TO SAID TRANSITION PLATES AND EXTENDING TO BE IN CONTACT WITH THE SUPPORTING SURFACE FOR SAID SNOWPLOW AND DEFINING THE LOWER EDGE OF SAID FORWARDLY DIRECTED OPENING, SAID TRANSITION PLATES AND SAID CUTTER BARS FORMING A SUBSTANTIALLY V-SHAPED CONFIGURATION ADAPTED TO FACILITATE MOVEMENT OF SNOW INTO SAID BLOWER PORTION IN THE CENTER OF SAID SNOW AUGER.
Claim 2
Dependent Claim
163 words
A ROTARY SNOWPLOW ADAPTED TO MOVE OVER A SUPPORTING SURFACE COMPRISING AN OUTER HOUSING, SAID HOUSING BEING COMPRISED OF TWO HOUSING SECTIONS, EACH BEING OF FRUSTO-CONICAL SHAPE WITH THEIR MAJOR DIAMETER PORTIONS JOINED IN THE CENTER OF THE HOUSING AND THEIR MINOR DIAMETER PROTIONS AT THE OUTER ENDS THEREOF, SAID HOUSING HAVING A FORWARDLY DIRECTED OPENING, A SNOW FEEDING AUGER OF SUBSTANTIALLY THE SAME SIZE AND SHAPE AS SAID HOUSING ROTATABLY MOUNTED IN SAID HOUSING, SAID SNOW FEEDING AUGER HAVING BLOWER PORTION IN THE CENTER THEREOF, A PAIR OF TRANSITION PLATES EACH TANGENT TO ONE OF THE FRUSTO-CONICAL SECTIONS OF SAID HOUSING, AND CUTTER BAR MEANS ATTACHED TO SAID TRANSITION PLATES AND EXTENDING TO BE IN CONTACT WITH THE SUPPORTING SURFACE FOR SAID SNOWPLOW AND DEFINING THE LOWER EDGE OF SAID FORWARDLY DIRECTED OPENING, SAID TRANSITION PLATES AND SAID CUTTER BARS FORMING A SUBSTANTIALLY V-SHAPED CONFIGURATION ADAPTED TO FACILITATE MOVEMENT OF SNOW INTO SAID BLOWER PORTION IN THE CENTER OF SAID SNOW AUGER.
References Cited (Backward Citations)
US2735199A
Cited
US1654685A
Cited
US1563920A
Cited
US1906718A
Cited
US2387959A
Cited
GB721182A
Cited
US2941223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |