US3086961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble dibasic acid-polyalkylenepolyamine-alkylene glycol crosslinked polymer
Assignee: Wyeth Holdings LLC
•
Filing: 1959-12-07
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Granted: 1963-04-23
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Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Ronald R House
- 👤 John H Rassweiler
- 👤 Joseph M Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:37
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; C08G69/44; Y; Y10; Y10S; Y10S525/00; Y10S525/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
THE METHOD OF PREPARING A WATER-SOLUBLE RESINOUS COMPOSITION WHICH COMPRISE REACTING (A) A DIBASIC ACID OF THE FORMULA
Claim 2
Independent Claim
18 words
THE METHOD OF PREPARING A WATER-SOLUBLE RESINOUS COMPOSITION WHICH COMPRISE REACTING (A) A DIBASIC ACID OF THE FORMULA
References Cited (Backward Citations)
US2387530A
Cited
US2720500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |