US2834759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble copolymers of vinyl acetate and allyl sulfonic acid salts and process for producing same
Assignee: EIDP Inc
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Filing: 1954-07-08
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Granted: 1958-05-13
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Expires: 1974-07-08
Abstract
No abstract record available.
Inventors
- 👤 Paul R Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:59
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F28/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
AS A NEW COMPOSITION OF MATTER, A WATER-SOLUBLE COPOLYMER HAVING THE FORMULA
Claim 2
Dependent Claim
12 words
AS A NEW COMPOSITION OF MATTER, A WATER-SOLUBLE COPOLYMER HAVING 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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |