Patent US6611901B1 successfully refreshed from Google Patents.
US3208207A
Expired / Lapsed
US
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Rotary mower
Assignee: B-M-B Company Inc
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Filing: 1962-09-10
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Granted: 1965-09-28
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Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Warren E Bottenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:08
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D34/66; A01D34/661
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
164 words
IN A POWER MOWER OF THE TYPE HAVING A PAIR OF ROTARY CUTTERS WHICH ARE ROTATABLE ABOUT LATERALLY SPACED VERTICAL AXES, MEANS FOR DRIVING SAID CUTTERS IN OPPOSITE DIRECTIONS COMPRISING A PAIR OF IDENTICAL GEAR BOXES EACH HAVING A DOWNWARDLY EXTENDING VERTICAL SHAFT CARRYING ONE OF SAID CUTTERS, EACH OF SAID GEAR BOXES ALSO HAVING A HORIZONTAL POWER INPUT SHAFT EXTENDING FROM THE BOX, A BASE SUPPORTING SAID GEAR BOXES WITH SAID INPUT SHAFTS PARALLEL TO ON ANOTHER BUT WITH THE RESPECTIVE ONES THEREOF EXTENDING IN OPPOSITE DIRECTIONS FROM A PLANE PASSING THROUGH THE AXES OF THE TWO VERTICAL SHAFTS, A STAND POSITIONED ON THE BASE BETWEEN THE TWO GEAR BOXES, A HORIZONTAL MAIN DRIVE SHAFT CARRIED BY SAID STAND PARALLEL TO SAID INPUT SHAFTS, A CHAIN AND SPROCKET DRIVE COUPLING ONE OF SAID INPUT SHAFTS TO SAID MAIN SHAFT TO RECEIVE POWER THEREFROM, AND A SECOND CHAIN AND SPROCKET DRIVE COUPLING THE OTHER INPUT SHAFT TO SAID MAIN SHAFT TO RECEIVE POWER THEREFROM.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |