Patent US1465570A successfully refreshed from Google Patents.
Patent US3366616A successfully refreshed from Google Patents.
US3366616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel polymeric compositions obtained by the polymerization of 1-phenylcyclobutene or bicyclo(4.2.0)oct-7-ene
Assignee: EIDP Inc
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Filing: 1964-12-09
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Granted: 1968-01-30
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Expires: 1984-12-09
Abstract
No abstract record available.
Inventors
- 👤 Tietz Raymond Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:28
CPC Classifications
C; C08; C08F; C08F32/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A NOVEL HIGH-MELTING LINEAR HYDROCARBON POLYMER HAVING AN INHERENT VISCOSITY OF AT LEAST ABOUT 0.1, WHEN MEASURED AS A 0.5% SOLUTION IN CHLOROFORM AT 30*C., AND A MELTING TEMPERATURE OF ABOUT 260*C. CONSISTING ESSENTIALLY OF THE FOLLOWING RECURRING STRUCTURAL UNIT
Claim 2
Dependent Claim
40 words
A NOVEL HIGH-MELTING LINEAR HYDROCARBON POLYMER HAVING AN INHERENT VISCOSITY OF AT LEAST ABOUT 0.1, WHEN MEASURED AS A 0.5% SOLUTION IN CHLOROFORM AT 30*C., AND A MELTING TEMPERATURE OF ABOUT 260*C. CONSISTING ESSENTIALLY OF THE FOLLOWING RECURRING STRUCTURAL UNIT
References Cited (Backward Citations)
US3215683A
Cited
US3252956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |