US3382653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power driven rotary mower
Assignee: FRANK DE BUIGNE
•
Filing: 1964-10-16
•
Granted: 1968-05-14
•
Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Buigne Frank De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:48
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/82; A01D2101/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A POWER DRIVEN ROTARY LAWN MOWER, THE COMBINATION OF: A WHEELED HOUSING; A SUBSTANTIALLY FLAT GRASS CUTTER BLADE WITHIN SAID HOUSING, DRIVING MEANS ON SAID HOUSING FOR ROTATING SAID CUTTER BLADE; ONE EDGE OF SAID BLADE HAVING A CUTTING EDGE THEREON WHILE THE OTHER EDGE HAS A PORTION ADJACENT THE END DEFORMED TOWARD THE HOUSING TO CREATE A SUCTION TO STAND UP THE GRASS TO BE CUT WHEN THE BLADE IS ROTATED AND ANOTHER PORTION INWARDLY OF SAID END DEFORMED TO CREATE AN AIR PRESSURE WHICH WILL LIFT THE HOUSING AND PARTS ASSEMBLED THEREON TO REDUCE THE WHEEL LOAD AND CONSEQUENTLY THE ROLLING RESISTANCE WHEN SAID MOWER IS OPERATED.
Claim 2
Dependent Claim
110 words
IN A POWER DRIVEN ROTARY LAWN MOWER, THE COMBINATION OF: A WHEELED HOUSING; A SUBSTANTIALLY FLAT GRASS CUTTER BLADE WITHIN SAID HOUSING, DRIVING MEANS ON SAID HOUSING FOR ROTATING SAID CUTTER BLADE; ONE EDGE OF SAID BLADE HAVING A CUTTING EDGE THEREON WHILE THE OTHER EDGE HAS A PORTION ADJACENT THE END DEFORMED TOWARD THE HOUSING TO CREATE A SUCTION TO STAND UP THE GRASS TO BE CUT WHEN THE BLADE IS ROTATED AND ANOTHER PORTION INWARDLY OF SAID END DEFORMED TO CREATE AN AIR PRESSURE WHICH WILL LIFT THE HOUSING AND PARTS ASSEMBLED THEREON TO REDUCE THE WHEEL LOAD AND CONSEQUENTLY THE ROLLING RESISTANCE WHEN SAID MOWER IS OPERATED.
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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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |