US2811497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solutions of synthetic clinear condensation polymers in dimethylsulfone and process for making same
Assignee: Solutia Inc
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Filing: 1955-04-25
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Granted: 1957-10-29
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Expires: 1975-04-25
Abstract
No abstract record available.
Inventors
- 👤 George E Ham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:17
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08K; C08K5/00; C08K5/36; C08K5/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A COMPOSITION OF MATTER COMPRISING A SOLUTION IN MOLTEN DIMETHYLSULFONE OF A SYNTHETIC LINEAR CONDENSATION POLYMER SELECTED FROM THE GROUP CONSISTING OF LINEAR POLYAMIDES CONTAINING AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN RECURRING GROUPS OF THE GENREAL FORMULA
Claim 2
Dependent Claim
40 words
A COMPOSITION OF MATTER COMPRISING A SOLUTION IN MOLTEN DIMETHYLSULFONE OF A SYNTHETIC LINEAR CONDENSATION POLYMER SELECTED FROM THE GROUP CONSISTING OF LINEAR POLYAMIDES CONTAINING AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN RECURRING GROUPS OF THE GENREAL FORMULA
References Cited (Backward Citations)
US2404717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |