US2661345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized acrylonitrile polymers
Assignee: Monsanto Chemicals Ltd
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Filing: 1950-10-26
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Granted: 1953-12-01
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Expires: 1970-10-26
Abstract
No abstract record available.
Inventors
- 👤 Robert J Slocombe
- 👤 George L Wesp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:17
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/30; C08K3/16; C08K3/28; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A STABLE POLYACRYLONITRILE POLYMER COMPRISING A POLYMER OF 20 PER CENT TO 100 PER CENT OF ACRYLONITRILE AND FROM UP TO 80 PER CENT OF ANOTHER OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH, SAID POLYMER CONTAINING INTIMATELY DISPERSED THEREIN AS THE SOLE STABILIZING AGENT FROM 0.01 TO TEN PER CENT OF A COMPOUND OF THE GROUP CONSISTING OF STRONTIUM CHLORIDE, STRONTIUM NITRATE, STRONTIUM MALEATE, STRONTIUM ACETYLACETONATE, AND STRONTIUM SULFATE.
Claim 2
Dependent Claim
66 words
A STABLE POLYACRYLONITRILE POLYMER COMPRISING A POLYMER OF 20 PER CENT TO 100 PER CENT OF ACRYLONITRILE AND FROM UP TO 80 PER CENT OF ANOTHER OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH, SAID POLYMER CONTAINING INTIMATELY DISPERSED THEREIN AS THE SOLE STABILIZING AGENT FROM 0.01 TO TEN PER CENT OF A COMPOUND OF THE GROUP CONSISTING OF STRONTIUM CHLORIDE, STRONTIUM NITRATE, STRONTIUM MALEATE, STRONTIUM ACETYLACETONATE, AND STRONTIUM SULFATE.
References Cited (Backward Citations)
US2507143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |