US2824846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of styrene, process for polymerization, and compositions containing same
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-03-17
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Granted: 1958-02-25
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Expires: 1974-03-17
Abstract
No abstract record available.
Inventors
- 👤 Ival O Salyer
- 👤 James A Herbig
- 👤 Dazzi Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:18
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
STYRENS POLYMER PREPANED BY POLYMERIZING STYRENE CONTAINING A SMALL QUANTITY OF AN ADDUCT OF AN UNSATU, RATED NON-HYDROXYLATED FATTY OIL AND A FUMARATE SELECTED FROM THE GROUP CONSISTING OF DIALKYL FUMARETES, DIALKOXYALKYL FUMARATES, AND ALKYL ALKOXYALKYL FUMARATES.
Claim 2
Dependent Claim
37 words
STYRENS POLYMER PREPANED BY POLYMERIZING STYRENE CONTAINING A SMALL QUANTITY OF AN ADDUCT OF AN UNSATU, RATED NON-HYDROXYLATED FATTY OIL AND A FUMARATE SELECTED FROM THE GROUP CONSISTING OF DIALKYL FUMARETES, DIALKOXYALKYL FUMARATES, AND ALKYL ALKOXYALKYL FUMARATES.
References Cited (Backward Citations)
US2678934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |