Patent US3538664A successfully refreshed from Google Patents.
Patent US3087555A successfully refreshed from Google Patents.
US3087555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary hoes
Assignee: Individual
•
Filing: 1961-06-22
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Granted: 1963-04-30
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Expires: 1981-06-22
Abstract
No abstract record available.
Inventors
- 👤 Lester Edwin Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:15
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/08; A01B33/14; A01B33/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A ROTARY HOE COMPRISING A FRAME, A HORIZONTAL TRANSVERSE HOE BLADE-SUPPORTING SHAFT, MOUNTING MEANS INCLUDING A GEAR CASING TO SUPPORT THE SHAFT INTERMEDIATE OF ITS ENDS, MEANS INCLUDING GEARS IN THE CASING TO TRANSMIT DRIVE TO THE SHAFT FOR ROTATION THEREOF IN A GIVEN DIRECTION, A PLURALITY OF HOE BLADES ON SAID SHAFT, AT LEAST THE HOE BLADES ADJACENT AND FACING THE GEAR CASING EACH COMPRISING A SUPPORT ARM MOUNTED AT ONE END TO THE SHAFT, A LATERAL EXTENSION ON SAID SUPPORT ARM AT THE OTHER END THEREOF, A DIGGING ARM PORTION PIVOTED TO THE LATERAL EXTENSION AND EXTENDING LATERALLY OF THE SUPPORT ARM, AND
Claim 2
Dependent Claim
105 words
A ROTARY HOE COMPRISING A FRAME, A HORIZONTAL TRANSVERSE HOE BLADE-SUPPORTING SHAFT, MOUNTING MEANS INCLUDING A GEAR CASING TO SUPPORT THE SHAFT INTERMEDIATE OF ITS ENDS, MEANS INCLUDING GEARS IN THE CASING TO TRANSMIT DRIVE TO THE SHAFT FOR ROTATION THEREOF IN A GIVEN DIRECTION, A PLURALITY OF HOE BLADES ON SAID SHAFT, AT LEAST THE HOE BLADES ADJACENT AND FACING THE GEAR CASING EACH COMPRISING A SUPPORT ARM MOUNTED AT ONE END TO THE SHAFT, A LATERAL EXTENSION ON SAID SUPPORT ARM AT THE OTHER END THEREOF, A DIGGING ARM PORTION PIVOTED TO THE LATERAL EXTENSION AND EXTENDING LATERALLY OF THE SUPPORT ARM, AND
References Cited (Backward Citations)
US1227090A
Cited
US2856832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |