US3314927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of alkylene polyaminesubstituted alkyl vinyl ethers and thioethers
Assignee: Rohm and Haas Co
•
Filing: 1964-07-21
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Granted: 1967-04-18
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Expires: 1984-07-21
Abstract
No abstract record available.
Inventors
- 👤 Everett J Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:31
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/267; C; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/28; C08F28/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
AS A COMPOSITION OF MATTER, A COPOLYMER OF ABOUT 1/2 TO 20% BY WEIGHT OF A POLYAMINE OF THE FORMULA
Claim 2
Dependent Claim
20 words
AS A COMPOSITION OF MATTER, A COPOLYMER OF ABOUT 1/2 TO 20% BY WEIGHT OF A POLYAMINE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |