Patent US3305391A successfully refreshed from Google Patents.
US3305391A
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US
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Treatment of fibrous materials with certain amino compounds and certain polyacid polyhalides
Assignee: Universal Oil Products Co
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Filing: 1963-12-12
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Granted: 1967-02-21
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Dunkel Morris
- 👤 Daniel J Eckhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:54
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/415; D06M16/00; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2525; Y10T442/2533; Y10T442/2541; Y10T442/2762
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PROCESS FOR THE TREATMENT OF A FIBROUS MATERIAL WHICH COMPRISES SUCCESSIVELY CONTACTING SAID FIBROUS MATERIAL WITH TWO MUTUALLY IMMISCIBLE SOLUTIONS, ONE OF SAID SOLUTIONS CONTAINS AN AMINO COMPOUND SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
35 words
A PROCESS FOR THE TREATMENT OF A FIBROUS MATERIAL WHICH COMPRISES SUCCESSIVELY CONTACTING SAID FIBROUS MATERIAL WITH TWO MUTUALLY IMMISCIBLE SOLUTIONS, ONE OF SAID SOLUTIONS CONTAINS AN AMINO COMPOUND SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |