US3102838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber treatment and resulting product
Assignee: JOHN A MANNING PAPER Co I
•
Filing: 1960-02-23
•
Granted: 1963-09-03
•
Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Laurence R B Hervey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:41
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/1254; D21H11/00; D21H13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
PROCESS FOR PRETREATING FIBERS PRIOR TO THEIR DISPERSION IN AN AQUEOUS LIQUID MEDIUM, CHARACTERIZED BY THE STEP OF AFFIXING TO THE SURFACE OF SUBSTANTIALLY DRY INDIVIDUAL FIBERS A DEFLOCCULANT IN AN ESSENTIALLY DRY FINELY-DIVVIDED PARTICULATE STATE THEREBY TO ATTACH SUBSTANTIALLY ALL OF SAID DEFLOCCULANT TO SAID FIBERS, SID DEFLOCCULANT BEING A MUCILAGEPRODUCING MATERIAL WHICH IMPARTS ROPINESS TO WATER IN CONCENTRATIONS AS LOW AS 0.25% AND WHICH SWELLS WHEN SAID FIBERS ARE DISPERSED IN SAID LIQUID MEDIUM THEREBY ATO PRODUCE A MUCILAGINOUS MASS SURROUNDING AT LEAST A PORTION OF THE SURFACE OF SAID INDIVIDUAL FIBERS.
Claim 2
Dependent Claim
94 words
PROCESS FOR PRETREATING FIBERS PRIOR TO THEIR DISPERSION IN AN AQUEOUS LIQUID MEDIUM, CHARACTERIZED BY THE STEP OF AFFIXING TO THE SURFACE OF SUBSTANTIALLY DRY INDIVIDUAL FIBERS A DEFLOCCULANT IN AN ESSENTIALLY DRY FINELY-DIVVIDED PARTICULATE STATE THEREBY TO ATTACH SUBSTANTIALLY ALL OF SAID DEFLOCCULANT TO SAID FIBERS, SID DEFLOCCULANT BEING A MUCILAGEPRODUCING MATERIAL WHICH IMPARTS ROPINESS TO WATER IN CONCENTRATIONS AS LOW AS 0.25% AND WHICH SWELLS WHEN SAID FIBERS ARE DISPERSED IN SAID LIQUID MEDIUM THEREBY ATO PRODUCE A MUCILAGINOUS MASS SURROUNDING AT LEAST A PORTION OF THE SURFACE OF SAID INDIVIDUAL FIBERS.
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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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |