Patent US3306370A successfully refreshed from Google Patents.
US3306370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turf groomer with adjustable turf-engaging implements
Assignee: Jacobsen Manufacturing Co
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Filing: 1964-05-27
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Granted: 1967-02-28
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Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Sherman C Heth
- 👤 Evan T Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:41
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0827; E01H1/0836; E01H1/0845; A; A01; A01D; A01D51/00; A01G; A01G20/00; A01G20/40; A01G20/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A RADIALLY ADJUSTABLE BRUSH MOUNTING FOR A LAWN SWEEPING MACHINE, COMPRISING A ROTOR INCLUDING RADIALLY EXTENDING SPACED-APART MOUNTING PLATES HAVING RADIALLY EXTENDING SLOTS SPACED THEREALONG, A BRUSH INCLUDING AN ELONGATED BACKING STRIP HAVING A BACK EDGE, L-SHAPED CLAMPING PLATES REVERSELY NESTED TOGETHER AND FLANKING SAID BACKING STRIP AND EXTENDING BEYOND SAID BACK EDGE AND HAVING TWO SETS OF BOLT HOLES IN THE EXTENDING PORTION WITH ONE SET ALIGNED WITH SAID SLOTS IN SAID MOUNTING PLATES AND WITH THE OTHER SET ALIGNED WITH SAID BACK EDGE OF SAID BACKING STRIP, BOLTS IN SAID OTHER SET OF SAID BOLT HOLES AND IN CONTACT WITH SAID BACK EDGE OF SAID BACKING STRIP TO ALIGN THE LATTER RADIALLY AND SECURE SAID CLAMPING PLATES TOGETHER, THE THICKNESS ACROSS SAID CLAMPING PLATES BEING SIMILAR TO THE SPACING BETWEEN SAID MOUNTING PLATES FOR RADIALLY SLIDABLE SNUG RECEPTION OF SAID CLAMPING
Claim 2
Dependent Claim
143 words
A RADIALLY ADJUSTABLE BRUSH MOUNTING FOR A LAWN SWEEPING MACHINE, COMPRISING A ROTOR INCLUDING RADIALLY EXTENDING SPACED-APART MOUNTING PLATES HAVING RADIALLY EXTENDING SLOTS SPACED THEREALONG, A BRUSH INCLUDING AN ELONGATED BACKING STRIP HAVING A BACK EDGE, L-SHAPED CLAMPING PLATES REVERSELY NESTED TOGETHER AND FLANKING SAID BACKING STRIP AND EXTENDING BEYOND SAID BACK EDGE AND HAVING TWO SETS OF BOLT HOLES IN THE EXTENDING PORTION WITH ONE SET ALIGNED WITH SAID SLOTS IN SAID MOUNTING PLATES AND WITH THE OTHER SET ALIGNED WITH SAID BACK EDGE OF SAID BACKING STRIP, BOLTS IN SAID OTHER SET OF SAID BOLT HOLES AND IN CONTACT WITH SAID BACK EDGE OF SAID BACKING STRIP TO ALIGN THE LATTER RADIALLY AND SECURE SAID CLAMPING PLATES TOGETHER, THE THICKNESS ACROSS SAID CLAMPING PLATES BEING SIMILAR TO THE SPACING BETWEEN SAID MOUNTING PLATES FOR RADIALLY SLIDABLE SNUG RECEPTION OF SAID CLAMPING
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |