US2768147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic vinyl compound-acenaphthene compound co-polymer and process of producing the same
Assignee: Rain Carbon Germany GmbH
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Filing: 1953-04-14
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Granted: 1956-10-23
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Expires: 1973-04-14
Abstract
No abstract record available.
Inventors
- 👤 Meis Helmut
- 👤 Sauer Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:17
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F2/00; C08F2/36; C08F212/12; C08F212/14; C08F212/16; C08F212/18; C08F212/32; C08F212/34; C08F212/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AS A NEW POLYMERIZED PRODUCT, A CO-POLYMERIZATION PRODUCT OF A POLYMERIZABLE AROMATIC VINYL COMPOUND WITH AN INGREDIENT SELECTED FROM THE GROUP CONSISTING OF ACENAPHTHENE, MONOHALOGENATED AND DIHALOGENATED ACENAPHTHENE AND ACENAPHTHENE SUBSTITUTED BY A LOWER ALKYL RADICAL, THE ACENAPHTHENE COMPOUND BEING PRESENT IN THE COPOLYMERIZATION PRODUCT IN THE RANGE OF 10-100% BASED ON THE WEIGHT OF THE AROMATIC VINYL COMPOUND.
Claim 2
Dependent Claim
59 words
AS A NEW POLYMERIZED PRODUCT, A CO-POLYMERIZATION PRODUCT OF A POLYMERIZABLE AROMATIC VINYL COMPOUND WITH AN INGREDIENT SELECTED FROM THE GROUP CONSISTING OF ACENAPHTHENE, MONOHALOGENATED AND DIHALOGENATED ACENAPHTHENE AND ACENAPHTHENE SUBSTITUTED BY A LOWER ALKYL RADICAL, THE ACENAPHTHENE COMPOUND BEING PRESENT IN THE COPOLYMERIZATION PRODUCT IN THE RANGE OF 10-100% BASED ON THE WEIGHT OF THE AROMATIC VINYL COMPOUND.
References Cited (Backward Citations)
US1975959A
Cited
US2445181A
Cited
US2510647A
Cited
US2568313A
Cited
GB680441A
Cited
US2624726A
Cited
GB687521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |