US2558667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable esters
Assignee: Sherwin Williams Co
•
Filing: 1946-04-13
•
Granted: 1951-06-26
•
Expires: 1966-04-13
Abstract
No abstract record available.
Inventors
- 👤 Armitage Frank
- 👤 Cottrell Jack Andrews
- 👤 Booth Ernest
- 👤 Buckle Richard Hartlebury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:27
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A POLYMERIZABLE SUCCINIC ACID ESTER HAVING THE FORMULA
Claim 2
Dependent Claim
8 words
A POLYMERIZABLE SUCCINIC ACID ESTER HAVING THE FORMULA
References Cited (Backward Citations)
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US2275034A
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US2389379A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |