US3036979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester-urethane, process of making solution of same, and products therefrom
Assignee: EIDP Inc
•
Filing: 1958-04-28
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Granted: 1962-05-29
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Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Wittbecker Emerson La Verne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
C; C08; C08L; C08L75/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
20 words
A NOVEL COMPOSITION OF MATTER COMPRISING A SOLUTION OF A POLYMERIC COMPOSITION HAVING A STRUCTURAL FORMULA WITH THE REPEATING UNIT:
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) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |