US2824858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable poly-ethylenically unsaturated compounds, polymers thereof, and their preparation
Assignee: Rohm and Haas Co
•
Filing: 1954-09-27
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Granted: 1958-02-25
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Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Melamed Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:31
CPC Classifications
C; C07; C07C; C07C273/00; C07C273/18; C07C273/1809; C07C273/1818; C07C273/1827; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A COMPOSITION OF MATTER COMPRISING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING ONE OF THE GENERAL FORMULAS:
Claim 2
Dependent Claim
20 words
A COMPOSITION OF MATTER COMPRISING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING ONE OF THE GENERAL FORMULAS:
References Cited (Backward Citations)
US2689844A
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 |