Patent CA959620A successfully refreshed from Google Patents.
CA959620A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Covering and stair access for openings in ceilings, roofs and similar wall structures
Assignee: Wilhelm Frank GmbH
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Filing: 1971-03-22
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Granted: 1974-12-24
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Expires: 1991-03-22
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Frank
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-10 01:56
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02; E04F11/04; E04F11/06; E04F11/062; E04F11/064; E04D; E04D13/00; E04D13/03; E04D13/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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