US2847271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloride composition and process for wetspinning same
Assignee: SNIA Viscosa SpA
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Filing: 1954-03-15
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Granted: 1958-08-12
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Siclari Francesco
- 👤 Bellano Angelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:15
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/096; C08K; C08K5/00; C08K5/16; C08K5/17; D; D01; D01F; D01F6/00; D01F6/02; D01F6/08; D01F6/10; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
AS NEW COMPOSITIONS OF MATTER, SPINNABLE SOLUTIONS OF POLYVINYL CHLORIDE CONSISTING OF SAID POLYVINYL CHLORIDE AND OF METHYL-TETRAHYDROFURFURYLAMINE AS THE SOLVENT.
Claim 2
Dependent Claim
21 words
AS NEW COMPOSITIONS OF MATTER, SPINNABLE SOLUTIONS OF POLYVINYL CHLORIDE CONSISTING OF SAID POLYVINYL CHLORIDE AND OF METHYL-TETRAHYDROFURFURYLAMINE AS THE SOLVENT.
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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |