US2694690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric acrylonitrile dissolved in an n, n-dimethyl carbamate ester of a polyhydric alcohol
Assignee: Beazer East Inc
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Filing: 1951-05-28
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Granted: 1954-11-16
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Expires: 1971-05-28
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:02
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/096; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A COMPOSITION OF MATTER COMPRISING POLYMERIC ACRYLONITRILE AND AN N,N-DIMETHYL-CARBAMATE ESTER OF A POLYHYDRIC ALCOHOL WHEREIN THE RATIO OF THE NUMBER OF N,NDIMETHYL-CARBAMATE ESTER GROUPS TO THE NUMBER OF CARBON ATOMS IN THE ALCOHOL GROUP IS BETWEEN 1:1 AND 1:1.5.
Claim 2
Dependent Claim
40 words
A COMPOSITION OF MATTER COMPRISING POLYMERIC ACRYLONITRILE AND AN N,N-DIMETHYL-CARBAMATE ESTER OF A POLYHYDRIC ALCOHOL WHEREIN THE RATIO OF THE NUMBER OF N,NDIMETHYL-CARBAMATE ESTER GROUPS TO THE NUMBER OF CARBON ATOMS IN THE ALCOHOL GROUP IS BETWEEN 1:1 AND 1:1.5.
References Cited (Backward Citations)
US2404714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |