US3369008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(cyclic ureidoalkyl) crotonamides and polymers thereof
Assignee: Rohm and Haas Co
•
Filing: 1964-05-26
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Granted: 1968-02-13
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Expires: 1984-05-26
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Hurwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:27
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; C07; C07D; C07D233/00; C07D233/04; C07D233/28; C07D233/30; C07D233/42; C07D239/00; C07D239/02; C07D239/06; C07D239/08; C07D239/10; C08F8/00; C08L; C08L1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
14 words
AS A COMPOSITION OF MATTER, AN ADDITION POLYMER OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2727016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |