Patent US4040766A successfully refreshed from Google Patents.
US2536498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride resins plasticized with alkyl esters of sulfonyl dipropionic acid
Assignee: Monsanto Chemicals Ltd
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Filing: 1948-09-25
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Granted: 1951-01-02
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Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 George L Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:51
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A COMPOSITION COMPRISING A VINYL CHLORIDECONTAINING POLYMER AND A COMPATIBLE AMOUNT OF AN ALKYL ESTER OF SULFONYL DIPROPIONIC ACID IN WHICH THE ALKYL GROUPS CONTAIN 6-12 CARBON ATOMS.
Claim 2
Dependent Claim
28 words
A COMPOSITION COMPRISING A VINYL CHLORIDECONTAINING POLYMER AND A COMPATIBLE AMOUNT OF AN ALKYL ESTER OF SULFONYL DIPROPIONIC ACID IN WHICH THE ALKYL GROUPS CONTAIN 6-12 CARBON ATOMS.
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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |