Patent US1396102A successfully refreshed from Google Patents.
Patent US3025213A successfully refreshed from Google Patents.
US3025213A
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Fiber washing method and apparatus
Assignee: Individual
•
Filing: 1958-05-26
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Granted: 1962-03-13
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Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Copeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:21
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/40; C; C10; C10G; C10G33/00; C10G33/06; D06; D06B; D06B3/00; D06B3/02; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/30; D21B1/32; D21B1/325; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
FIBER WASHING APPARATUS COMPRISING A CHAMBER, MEANS FOR INTRODUCING INTO THE CHAMBER AN AQUEOUS SUSPENSION OF FIBERS AND FOREIGN PARTICLES, A HOLLOW ROTOR MOUNTED FOR ROTATION WITHIN THE CHAMBER, SUSPENSIONAGITATING MEANS MOUNTED ON THE PERIPHERY OF THE ROTOR, A PLURALITY OF PORTS OPENING OUT ON THE PERIPHERY OF THE ROTOR AND COMMUNICATING WITH THE HOLLOW INTERIOR THEREOF, CONDUIT MEANS CONNECTED TO THE HOLLOW INTERIOR OF
Claim 2
Dependent Claim
65 words
FIBER WASHING APPARATUS COMPRISING A CHAMBER, MEANS FOR INTRODUCING INTO THE CHAMBER AN AQUEOUS SUSPENSION OF FIBERS AND FOREIGN PARTICLES, A HOLLOW ROTOR MOUNTED FOR ROTATION WITHIN THE CHAMBER, SUSPENSIONAGITATING MEANS MOUNTED ON THE PERIPHERY OF THE ROTOR, A PLURALITY OF PORTS OPENING OUT ON THE PERIPHERY OF THE ROTOR AND COMMUNICATING WITH THE HOLLOW INTERIOR THEREOF, CONDUIT MEANS CONNECTED TO THE HOLLOW INTERIOR OF
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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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |