US3332909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyarylene polyethers
Assignee: Union Carbide Corp
•
Filing: 1965-07-15
•
Granted: 1967-07-25
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Alford G Farnham
- 👤 Robert N Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:49
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/40; C08G65/4006; C08G2650/00; C08G2650/28; C08G2650/46; C08G2650/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A SUBSTANTIALLY LINEAR THERMOPLASTIC POLYARYLENE POLYETHER COMPOSED OF RECURRING UNITS HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A SUBSTANTIALLY LINEAR THERMOPLASTIC POLYARYLENE POLYETHER COMPOSED OF RECURRING UNITS 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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |