Patent US3301566A successfully refreshed from Google Patents.
US3301566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined mill and spreader
Assignee: Darf Corp
•
Filing: 1964-03-10
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Granted: 1967-01-31
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Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 George C Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:49
CPC Classifications
A; A01; A01C; A01C3/00; A01C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A MATERIAL MILLING, MIXING AND SPREADING APPARATUS, THE COMBINATION OF AN ELONGATED BODY OPEN AT THE TOP THEREOF, A CARRIER MOVABLE LONGITUDINALLY ALONG SAID BODY, A ROTATABLE FLAIL TYPE BEATER UNIT SUPPORTED BY SAID CARRIER AND MOVABLE LONGITUDINALLY IN SAID BODY FROM ONE END THEREOF TO THE OTHER WHEN THE CARRIER IS MOVED ALONG THE BODY WHEREBY SAID BEATER UNIT MAY PROGRESSIVELY COME IN CONTACT WITH MATERIAL THROUGHOUT THE LENGTH OF THE
Claim 2
Dependent Claim
73 words
IN A MATERIAL MILLING, MIXING AND SPREADING APPARATUS, THE COMBINATION OF AN ELONGATED BODY OPEN AT THE TOP THEREOF, A CARRIER MOVABLE LONGITUDINALLY ALONG SAID BODY, A ROTATABLE FLAIL TYPE BEATER UNIT SUPPORTED BY SAID CARRIER AND MOVABLE LONGITUDINALLY IN SAID BODY FROM ONE END THEREOF TO THE OTHER WHEN THE CARRIER IS MOVED ALONG THE BODY WHEREBY SAID BEATER UNIT MAY PROGRESSIVELY COME IN CONTACT WITH MATERIAL THROUGHOUT THE LENGTH OF THE
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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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |