US3411275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled rotary lawn mower
Assignee: AIRCAP REALTY ASSOCIATES
•
Filing: 1966-07-05
•
Granted: 1968-11-19
•
Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Charles A Mattson
- 👤 William V Kalnins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:40
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/67; A01D34/68; A01D34/6806; A01D2101/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A SELF-PROPELLED ROTARY LAWN MOWER COMPRISING AN INVERTED CUP-SHAPED HOUSING SUPPORTING AN ENGINE, A CUTTER DISPOSED UNDER SAID HOUSING AND SECURED TO SAID ENGINE FOR ROTATION, AN AXLE EXTENDING HORIZONTALLY UNDER AND ACROSS SAID HOUSING AND ATTACHED TO A SUPPORTING WHEEL AT EACH END THEREOF, SAID AXLE ROTATABLY SUPPORTED BY A BEARING POSITIONED NEAR EACH OF SAID WHEELS, LEVERS PIVOTALLY ATTACHED TO SAID HOUSING AND SAID LEVERS RECEIVE AND SUPPORT SAID BEARINGS SO THAT SAID AXLE CAN PIVOT ABOUT A LONGITUDINAL AXIS, WHEEL ELEVATION MEANS CARRIED BY SAID HOUSING FOR SELECTIVELY POSITIONING AND CONTROLLING THE PIVOTAL MOVEMENT OF EACH OF SAID LEVERS, CLUTCH MEANS MOUNTED ON SAID AXLE WITHIN SAID HOUSING BETWEEN SAID WHEEL, POWER MEANS POSITIONED UNDER SAID HOUSING AND EXTENDING FROM SAID ENGINE TO SAID CLUTCH MEANS FOR TRANSMITTING POWER TO SAID WHEELS THROUGH SAID CLUTCH MEANS.
Claim 2
Dependent Claim
140 words
IN A SELF-PROPELLED ROTARY LAWN MOWER COMPRISING AN INVERTED CUP-SHAPED HOUSING SUPPORTING AN ENGINE, A CUTTER DISPOSED UNDER SAID HOUSING AND SECURED TO SAID ENGINE FOR ROTATION, AN AXLE EXTENDING HORIZONTALLY UNDER AND ACROSS SAID HOUSING AND ATTACHED TO A SUPPORTING WHEEL AT EACH END THEREOF, SAID AXLE ROTATABLY SUPPORTED BY A BEARING POSITIONED NEAR EACH OF SAID WHEELS, LEVERS PIVOTALLY ATTACHED TO SAID HOUSING AND SAID LEVERS RECEIVE AND SUPPORT SAID BEARINGS SO THAT SAID AXLE CAN PIVOT ABOUT A LONGITUDINAL AXIS, WHEEL ELEVATION MEANS CARRIED BY SAID HOUSING FOR SELECTIVELY POSITIONING AND CONTROLLING THE PIVOTAL MOVEMENT OF EACH OF SAID LEVERS, CLUTCH MEANS MOUNTED ON SAID AXLE WITHIN SAID HOUSING BETWEEN SAID WHEEL, POWER MEANS POSITIONED UNDER SAID HOUSING AND EXTENDING FROM SAID ENGINE TO SAID CLUTCH MEANS FOR TRANSMITTING POWER TO SAID WHEELS THROUGH SAID CLUTCH MEANS.
References Cited (Backward Citations)
US2645300A
Cited
US2688224A
Cited
US2764268A
Cited
US2722281A
Cited
US2893501A
Cited
US2886934A
Cited
US2996134A
Cited
US3063436A
Cited
US3014546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |