US2877599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil conditioner and process utilizing carbon black
Assignee: HEBESTREET
•
Filing: 1954-08-02
•
Granted: 1959-03-17
•
Expires: 1974-08-02
Abstract
No abstract record available.
Inventors
- 👤 Elmer W Hebestreet
- 👤 Joseph T Plunkett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:40
CPC Classifications
C; C05; C05D; C05D9/00; C05D3/00; C05F; C05F11/00; Y; Y10; Y10S; Y10S71/00; Y10S71/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE PROCESS OF PREPARING A SOIL CONDITIONER WHICH COMPRISES INTIMATELY MIXING CARBON BLACK WITH FIBROUS ORGANIC MATERIAL AND GYPSUM UNDER SELECTIVE PREDETERMINED QUANTITATIVE CONTROL OF ENTRAPPED AIR, AND FORMING THE RESULTING MIXTURE INTO DISCRETE COHERENT PELLETS ADAPTED FOR SPREADING ON THE GROUND AND WEATHERING INTO THE SOIL.
Claim 2
Dependent Claim
47 words
THE PROCESS OF PREPARING A SOIL CONDITIONER WHICH COMPRISES INTIMATELY MIXING CARBON BLACK WITH FIBROUS ORGANIC MATERIAL AND GYPSUM UNDER SELECTIVE PREDETERMINED QUANTITATIVE CONTROL OF ENTRAPPED AIR, AND FORMING THE RESULTING MIXTURE INTO DISCRETE COHERENT PELLETS ADAPTED FOR SPREADING ON THE GROUND AND WEATHERING INTO THE SOIL.
References Cited (Backward Citations)
US619633A
Cited
US27022A
Cited
US878912A
Cited
DE486203C
Cited
AT107958B
Cited
US1882377A
Cited
US1931248A
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US2139584A
Cited
US2200107A
Cited
US2221175A
Cited
US2163860A
Cited
US2339335A
Cited
US2498480A
Cited
GB599445A
Cited
FR939885A
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US2579732A
Cited
US2671985A
Cited
US2633674A
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US2749590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |