US2856377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytrifluorochloroethylene compositions
Assignee: Hoechst AG
•
Filing: 1953-05-26
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Granted: 1958-10-14
•
Expires: 1973-05-26
Abstract
No abstract record available.
Inventors
- 👤 Fuchs Otto
- 👤 Hoyer Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
1. COMPOSITIONS OF MATTER CONTAINING POLYTRIFLUOROCHLOROETHYLENE AND FROM 2 TO 10 PERCENT OF A HYDROAROMATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF DIPENTENE, DICYCLOPENTADIENE, PINENE, CAMPHENE, VINYL CYCLOHEXENE AND METHYLHEXENE.
Claim 2
Dependent Claim
30 words
1. COMPOSITIONS OF MATTER CONTAINING POLYTRIFLUOROCHLOROETHYLENE AND FROM 2 TO 10 PERCENT OF A HYDROAROMATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF DIPENTENE, DICYCLOPENTADIENE, PINENE, CAMPHENE, VINYL CYCLOHEXENE AND METHYLHEXENE.
References Cited (Backward Citations)
US2542070A
Cited
US2718511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |