Patent US3015677A successfully refreshed from Google Patents.
US3015677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the stabilization of chloroprene
Assignee: Knapsack AG
•
Filing: 1960-01-20
•
Granted: 1962-01-02
•
Expires: 1980-01-20
Abstract
No abstract record available.
Inventors
- 👤 Vogt Wilhelm
- 👤 Weiden Hans
- 👤 Gehrmann Klaus
- 👤 Sennewald Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:11
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
PROCESS FOR THE STABILIZATION OF CHLOROPRENE AGAINST W-POLYMERIZATION WHICH COMPRISES ADDING TO THE CHLOROPRENE AS POLYMERIZATION INHIBITOR A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF N-NITROSO-DIPHENYL AMINE, DICHLORO-1-NITRO-ETHYLENE, DIMERIC MONOCHLORONITRIETHYLENE AND A MIXTURE OF DICHLORO-1-NITROETHYLENE AND DIMERIC MONOCHLORONOITROETHYLENE, IN AN AMOUNT OF AT LEAST 0.2 PART PER THOUSAND PARTS OF CHLOROPRENE.
Claim 2
Dependent Claim
51 words
PROCESS FOR THE STABILIZATION OF CHLOROPRENE AGAINST W-POLYMERIZATION WHICH COMPRISES ADDING TO THE CHLOROPRENE AS POLYMERIZATION INHIBITOR A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF N-NITROSO-DIPHENYL AMINE, DICHLORO-1-NITRO-ETHYLENE, DIMERIC MONOCHLORONITRIETHYLENE AND A MIXTURE OF DICHLORO-1-NITROETHYLENE AND DIMERIC MONOCHLORONOITROETHYLENE, IN AN AMOUNT OF AT LEAST 0.2 PART PER THOUSAND PARTS OF CHLOROPRENE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |