Patent US3296201A successfully refreshed from Google Patents.
US3296201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-phenyl aromatic polymers
Assignee: EIDP Inc
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Filing: 1962-11-08
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Granted: 1967-01-03
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Expires: 1982-11-08
Abstract
No abstract record available.
Inventors
- 👤 Stephens Curtis Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:15
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/32; C08L; C08L75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A FIBER-FORMING NITROGEN-CONTAINING LINEAR CONDENSATION POLYMER CONSISTING ESSENTIALLY OF THE FOLLOWING RECURRING STRUCTURAL UNITS:
Claim 2
Dependent Claim
14 words
A FIBER-FORMING NITROGEN-CONTAINING LINEAR CONDENSATION POLYMER CONSISTING ESSENTIALLY OF THE FOLLOWING RECURRING STRUCTURAL UNITS:
References Cited (Backward Citations)
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US3049511A
Cited
US3109836A
Cited
US3154524A
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US3232910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |