US3389726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stump pulverizing apparatus
Assignee: JACK L GOOD
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Filing: 1964-07-10
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Granted: 1968-06-25
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jack L Good
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:36
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/06; A01G23/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A STUMP PULVERIZING DEVICE COMPRISING A WHEELED FRAME, MEANS ADAPTED FOR ATTACHING ONE END OF SAID FRAME TO THE HYDRAULICALLY ACTUATED LIFT BAR OF A TRACTOR, A ROTATABLE STUMP PULVERIZING DRUM MOUNTED TRANSVERSELY OF THE FRAME, POWER MEANS CARRIED BY SAID FRAME FOR ROTATING SAID DRUM AND PULVERIZING TEETH ON SAID DRUM, SAID TEETH BEING ELONGATED IN THE DIRECTION OF ROTATION OF SAID DRUM AND PROVIDED WITH SHARP POINTS AND CONCAVED FRONT STUMP IMPACTING SURFACES, THE TEETH BEING ARRANGED IN STAGGERED ROWS WITH THE TEETH OF ONE ROW OFFSET RELATIVE TO THE TEETH OF AN ADJACENT ROW, AND ARRANGED SPIRALLY RELATIVE TO THE AXIS OF SAID DRUM.
Claim 2
Dependent Claim
107 words
A STUMP PULVERIZING DEVICE COMPRISING A WHEELED FRAME, MEANS ADAPTED FOR ATTACHING ONE END OF SAID FRAME TO THE HYDRAULICALLY ACTUATED LIFT BAR OF A TRACTOR, A ROTATABLE STUMP PULVERIZING DRUM MOUNTED TRANSVERSELY OF THE FRAME, POWER MEANS CARRIED BY SAID FRAME FOR ROTATING SAID DRUM AND PULVERIZING TEETH ON SAID DRUM, SAID TEETH BEING ELONGATED IN THE DIRECTION OF ROTATION OF SAID DRUM AND PROVIDED WITH SHARP POINTS AND CONCAVED FRONT STUMP IMPACTING SURFACES, THE TEETH BEING ARRANGED IN STAGGERED ROWS WITH THE TEETH OF ONE ROW OFFSET RELATIVE TO THE TEETH OF AN ADJACENT ROW, AND ARRANGED SPIRALLY RELATIVE TO THE AXIS OF SAID DRUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |