US2841529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing cellulose wool and resulting products thereof
Assignee: Dite Papeteries de la Robertsau SA Ste
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Filing: 1953-02-10
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Granted: 1958-07-01
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Expires: 1973-02-10
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Jacques
- 👤 Meyer Pierre-Francois Auguste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR MANUFACTURING A CELLULOSE WOOL PRODUCT INHIBITED AGAINST EVOLUTION OF ODORS OF LIQUIDS ABSORBED THEREIN, WHICH COMPRISES: PREPARING AN AQUEOUS SUSPENSION OF CELLULOSIC FIBERS, THOROUGHLY DISTRIBUTING DEODORIZING CHLOROPHYLL IN SAID SUSPENSION, ADDING THERETO A WATER-SOLUBLE SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND BARIUM TO ACT AS A FLOCCULANT FOR THE SAID CHLOROPHYLL ON THE CELLULOSE, AND CONVERTING THE SUSPENSION INTO CELLULOSE WOOL.
Claim 2
Dependent Claim
69 words
A PROCESS FOR MANUFACTURING A CELLULOSE WOOL PRODUCT INHIBITED AGAINST EVOLUTION OF ODORS OF LIQUIDS ABSORBED THEREIN, WHICH COMPRISES: PREPARING AN AQUEOUS SUSPENSION OF CELLULOSIC FIBERS, THOROUGHLY DISTRIBUTING DEODORIZING CHLOROPHYLL IN SAID SUSPENSION, ADDING THERETO A WATER-SOLUBLE SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND BARIUM TO ACT AS A FLOCCULANT FOR THE SAID CHLOROPHYLL ON THE CELLULOSE, AND CONVERTING THE SUSPENSION INTO CELLULOSE WOOL.
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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |