US3188787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary disk lawn mower
Assignee: Individual
•
Filing: 1962-01-15
•
Granted: 1965-06-15
•
Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Weiland Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:18
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/063; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/81; A01D2101/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A LAWN CARE UNIT COMPRISING A ROTARY POWER MOWER INCLUDING A VERTICALLY DISPOSED SHAFT, A CUTTING BLADE ATTACHED TO SAID SHAFT, IMPELLING MEANS ON SAID BLADE, AN OPEN BOTTOM CYLINDRICAL HOUSING FOR SAID BLADE, SAID HOUSING BEING FORMED BY A TOP WALL AND AN ANNULAR RIM, A PLATE TRANSVERSELY DISPOSED IN SAID HOUSING IN SPACED PARALLEL FIXED RELATION TO THE TOP THEREOF TO FORM AN AIR PLENUM HAVING AN AIR ENTRANCE FORMED IN THE RIM OF THE HOUSING ABOVE SAID PLATE, SAID PLATE HAVING AN APERTURE THEREIN COAXIAL WITH THE CUTTING BLADE SHAFT THROUGH WHICH
Claim 2
Dependent Claim
96 words
IN A LAWN CARE UNIT COMPRISING A ROTARY POWER MOWER INCLUDING A VERTICALLY DISPOSED SHAFT, A CUTTING BLADE ATTACHED TO SAID SHAFT, IMPELLING MEANS ON SAID BLADE, AN OPEN BOTTOM CYLINDRICAL HOUSING FOR SAID BLADE, SAID HOUSING BEING FORMED BY A TOP WALL AND AN ANNULAR RIM, A PLATE TRANSVERSELY DISPOSED IN SAID HOUSING IN SPACED PARALLEL FIXED RELATION TO THE TOP THEREOF TO FORM AN AIR PLENUM HAVING AN AIR ENTRANCE FORMED IN THE RIM OF THE HOUSING ABOVE SAID PLATE, SAID PLATE HAVING AN APERTURE THEREIN COAXIAL WITH THE CUTTING BLADE SHAFT THROUGH WHICH
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |