Patent US3940257A successfully refreshed from Google Patents.
US3940257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil conditioning fertilizer compound
Assignee: American Forest Industries Ltd
•
Filing: 1970-09-23
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Granted: 1976-02-24
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Expires: 1990-09-23
Abstract
Abstract A soil conditioning and fertilizer composition and the process of producing it is disclosed, the composition composed of particulate seaweed intimately mixed with particulate tree bark.
Inventors
- 👤 Ian M. Sherwin
- 👤 John R. Grubbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:04
CPC Classifications
C; C05; C05F; C05F11/00; Y; Y10; Y10S; Y10S71/00; Y10S71/903; Y10S71/904
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
89 words
The method of combining particulate raw seaweed and particulate tree bark to produce a soil conditioning and fertilizing composition comprising; providing particulate raw seaweed, providing particulate tree bark, mixing the particulate seaweed and tree bark in a weight ratio of 10 parts tree bark to no more than about 1 part seaweed to assure uniform distribution of the seaweed throughout the bark, and pulverizing the mixture to reduce the composition to particulate form and to cause the juices of the seaweed to wet the fibers of the tree bark.
Claim 2
Independent Claim
89 words
The method of combining particulate raw seaweed and particulate tree bark to produce a soil conditioning and fertilizing composition comprising; providing particulate raw seaweed, providing particulate tree bark, mixing the particulate seaweed and tree bark in a weight ratio of 10 parts tree bark to no more than about 1 part seaweed to assure uniform distribution of the seaweed throughout the bark, and pulverizing the mixture to reduce the composition to particulate form and to cause the juices of the seaweed to wet the fibers of the tree bark.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein the mixing is performed by delivering by conveyor metered quantities of the bark and seaweed to a common hopper.
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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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |