.

Flexible Flat-Rate Plans

Flat-rate pricing for predictable budgeting

Short-term plans for project- or client-based billing

► Plans and Pricing

Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

DrugPatentWatch Database Preview

Details for Patent: 6,864,257

« Back to Dashboard

Summary for Patent: 6,864,257

Title: Optically active 5H-pyrrolo[3,4-b]pyrazine derivative, its preparation and pharmaceutical compositions containing it
Abstract:Dextrorotatory isomer of 6-(5-chloro-2-pyridyl)-5-[(4-methyl-1-piperazinyl)carbonyloxy]-7-oxo-6,7-d ihydro-5H-pyrrolo[3,4-b]pyrazine, its preparation and pharmaceutical compositions containing it which are usable as tranquillisers and hypnotics.
Inventor(s): Cotrel; Claude (Paris, FR), Roussel; Gerard (Soisy sur Seine, FR)
Assignee: Sepracor Inc. (Marlborough, MA)
Application Number:10/200,510
Patent Claim Types:
see list of patent claims
Use; Composition; Delivery;
Patent Metrics:
Source: PatentQuant.com
Field: Not categorized
Back Citations: 11th percentile
Forward Citations: 1st percentile
Patent PDF download available with subscription

No matches for this query

Premature patent expiration for: 6,864,257

Expiration due to failure to pay maintenance fee

Patent Number Expiration Date
6,864,257 March 08, 2013

Foreign Priority and PCT Information for Patent: 6,864,257

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
France91 00490Jan 17, 1991

International Patent Family for Patent: 6,864,257

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
France2671800<disabled in preview>
European Patent Office0495717<disabled in preview>
European Patent Office0609210<disabled in preview>
This preview shows a limited data set
Subscribe for full access, or try a Trial

The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

Export unavailable in trial.
Subscribe for complete access.

For more information try a trial or see the database preview and plans and pricing

How are People Using DrugPatentWatch?

`abc