US2617783A
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: 1952-11-11
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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
2026-10-30 21:58
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/38; C08K5/00; C08K5/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A STABLE POLYACRYLONITRILE POLYMER COMPRISING A POLYMER OF 20 PER CENT TO 100 PER CENT OF ACRYLONITRILE AND UP TO 80 PER CNET OF ANOTHER OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH, SAID POLYMER CONTAINING INITMATELY DISPERSED THEREIN FROM 0.01 TO TEN PER CNET OF A COMPOUND OF THE GROUP CONSISTING OF THE ACIDS OF BORON AND ESTERS THEREOF.
Claim 2
Dependent Claim
56 words
A STABLE POLYACRYLONITRILE POLYMER COMPRISING A POLYMER OF 20 PER CENT TO 100 PER CENT OF ACRYLONITRILE AND UP TO 80 PER CNET OF ANOTHER OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH, SAID POLYMER CONTAINING INITMATELY DISPERSED THEREIN FROM 0.01 TO TEN PER CNET OF A COMPOUND OF THE GROUP CONSISTING OF THE ACIDS OF BORON AND ESTERS THEREOF.
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) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |