US2956974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solutions of polyesters and process for making same
Assignee: Solutia Inc
•
Filing: 1958-11-05
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Granted: 1960-10-18
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Expires: 1978-11-05
Abstract
No abstract record available.
Inventors
- 👤 Witt Hobson D De
- 👤 Arthur B Beindorff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:20
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J2367/00; C08J2367/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A NEW COMPOSITION OF MATTER COMPRISING A SOLUTION OF A SYNTHETIC LINEAR CONDENSATION POLYESTER DISSOLVED IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
28 words
A NEW COMPOSITION OF MATTER COMPRISING A SOLUTION OF A SYNTHETIC LINEAR CONDENSATION POLYESTER DISSOLVED IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |