US2692875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methacrylonitrile-acrylonitrile copolymers and fibers thereof
Assignee: Honeywell International Inc
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Filing: 1949-06-17
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Granted: 1954-10-26
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Expires: 1969-06-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry H Weinstock
- 👤 Glenn A Nesty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:13
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; D; D01; D01F; D01F6/00; D01F6/02; D01F6/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
POLYMERIC FILAMENTS OR FIBERS IN WHICH THE POLYMERIC MATERIAL IS A COPOLYMER OF ACRYLONITRILE WITH, AS THE PRINCIPAL OTHER COPOLYMER CONSTITUENT, METHACRYLONITRILE IN THE RATIO BY WEIGHT OF MORE THAN 15 PARTS METHACRYLONITRILE TO 85 PARTS ACRYLONITRILE BUT NOT SUBSTANTIALLY MORE THAN 30 PARTS METHACRYLONTRILE TO 70 PARTS ACRYLONTRILE,
Claim 2
Dependent Claim
49 words
POLYMERIC FILAMENTS OR FIBERS IN WHICH THE POLYMERIC MATERIAL IS A COPOLYMER OF ACRYLONITRILE WITH, AS THE PRINCIPAL OTHER COPOLYMER CONSTITUENT, METHACRYLONITRILE IN THE RATIO BY WEIGHT OF MORE THAN 15 PARTS METHACRYLONITRILE TO 85 PARTS ACRYLONITRILE BUT NOT SUBSTANTIALLY MORE THAN 30 PARTS METHACRYLONTRILE TO 70 PARTS ACRYLONTRILE,
References Cited (Backward Citations)
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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) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |