Patent US4234588A successfully refreshed from Google Patents.
Patent JPS58136012A successfully refreshed from Google Patents.
JPS58136012A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Focusing method of zoom lens
Assignee: Canon Inc
•
Filing: 1982-02-08
•
Granted: —
•
Expires: 2002-02-08
Abstract
Abstract Translated from Japanese (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Inventors
- 👤 Tsunefumi Tanaka
- 👤 常文 田中
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 01:44
CPC Classifications
G; G02; G02B; G02B15/00; G02B15/14; G02B15/144; G02B15/1441; G02B15/144105
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
JPS56165107A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.