CA Patent

CA254853A — Radio train stop and telephone despatching system

Assigned to PRENTICE ELECTRIC POWER APPLIANCE Co OF CANADA · Expires 1925-10-20 · 101y expired

What this patent protects

Patent listed against Brenzavvy.

Drugs covered by this patent

Patent Metadata

Patent number
CA254853A
Jurisdiction
CA
Classification
—
Expires
1925-10-20
Drug substance claim
No
Drug product claim
No
Assignee
PRENTICE ELECTRIC POWER APPLIANCE Co OF CANADA
Source
FDA Orange Book + USPTO grounding via Google Patents

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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.