Patent US2586796A successfully refreshed from Google Patents.
US2586796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of viscose rayon
Assignee: TEXTILE and CHEM RES CO Ltd
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Filing: 1950-07-14
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Granted: 1952-02-26
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Expires: 1970-07-14
Abstract
No abstract record available.
Inventors
- 👤 Drisch Nicolas
- 👤 Brepson Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:07
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
PROCESS FOR THE PRODUCTION OF HIGH QUALITY VISCOSE RAYON FILAMENTS HAVING IN THE AIR-DRY CONDITION A TENANCITY GREATER THAN 4.8 G. PER DENIER AND WHICH COMPRISES PROVIDING A SUPPLY OF WATER, TAKING FLUID PRESSURE FROM A COMBUSTION CHAMBER OF THE ENGINE, AND USING SUCH PRESSURE FOR INJECTING WATER INTO THE FUEL.
Claim 2
Dependent Claim
51 words
PROCESS FOR THE PRODUCTION OF HIGH QUALITY VISCOSE RAYON FILAMENTS HAVING IN THE AIR-DRY CONDITION A TENANCITY GREATER THAN 4.8 G. PER DENIER AND WHICH COMPRISES PROVIDING A SUPPLY OF WATER, TAKING FLUID PRESSURE FROM A COMBUSTION CHAMBER OF THE ENGINE, AND USING SUCH PRESSURE FOR INJECTING WATER INTO THE FUEL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |