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Patent US2556437A successfully refreshed from Google Patents.
US2556437A
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Copolymers of vinyl acetate and allyl carbanilates
Assignee: Monsanto Chemicals Ltd
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Filing: 1948-12-30
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Granted: 1951-06-12
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Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 David T Mowry
- 👤 George E Ham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:12
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F218/08; C08F18/00; C08F18/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A UNIFORM HOMOGENEOUS COPOLYMER OF 80 TO 99 PERCENT VINYL ACETATE AND ONE TO 20 PERCENT OF A COMPOUND HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
23 words
A UNIFORM HOMOGENEOUS COPOLYMER OF 80 TO 99 PERCENT VINYL ACETATE AND ONE TO 20 PERCENT OF A COMPOUND HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2388851A
Cited
US2466404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |