GB806876A — Improvements in and relating to disposable hypodermic injection devices
Assigned to Wellcome Foundation Ltd · Expires 1959-01-07 · 67y expired
What this patent protects
In order to avoid the contents of a polythene ampoule drying out when this contains a water-soluble medicament, the medicament is dissolved in a mixture of one or both of propylene glycol and glycerine with water. The proportion of water is adjusted to suit the average external …
USPTO Abstract
In order to avoid the contents of a polythene ampoule drying out when this contains a water-soluble medicament, the medicament is dissolved in a mixture of one or both of propylene glycol and glycerine with water. The proportion of water is adjusted to suit the average external conditions of temperature and humidity. Suitable analgesics for this purpose are methadone, iso-anidone, dipipanone, pethidine and morpholinylethylnorpethidine.
Drugs covered by this patent
- Risperdal (risperidone) · Johnson & Johnson (Janssen)
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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