US3511808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters of a phenol and tetramethyl adipic acid
Assignee: EIDP Inc
•
Filing: 1968-07-26
•
Granted: 1970-05-12
•
Expires: 1988-07-26
Abstract
No abstract record available.
Inventors
- 👤 James D Hodge
- 👤 Richard D Weimar Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:29
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3008933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |