US2705347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for separating animal fibers from vegetable residues with the use of high frequency currents
Assignee: Individual
•
Filing: 1949-03-03
•
Granted: 1955-04-05
•
Expires: 1969-03-03
Abstract
No abstract record available.
Inventors
- 👤 Carbonetto Stefano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:48
CPC Classifications
B; B03; B03C; B03C7/00; B03C7/003; D; D01; D01C; D01C3/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A PROCESS FOR SEPARATING, IN A MIXTURE OF ANIMAL FIBERS AND VEGETABLE RESIDUES, SAID ANIMALS FIBERS AND VEGETABLE RESIDUES FROM EACH OTHER COMPRISING THE STEPS OF COATING THE VEGETABLE RESIDUES WITH AN ELECTRICALLY CONDUCTIVE MATERIAL; DRYING THE MIXTURE; SUBJECTING THE MIXTURE TO THE ACTION OF AN ELECTRIC FIELD OF HIGH FREQUENCY SO AS TO FLUFF OUT SAID ANIMAL FIBERS FROM SAID VEGETABLE RESIDUES AND FROM EACH OTHER; AND SEPARATELY COLLECTING SAID VEGETABLE RESIDUES AND ANIMAL FIBERS, RESPECTIVELY.
References Cited (Backward Citations)
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Cited
US461579A
Cited
US813404A
Cited
US1604406A
Cited
US1968860A
Cited
US1968861A
Cited
US2263681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |