Patent US4422940A successfully refreshed from Google Patents.
Patent US523757A successfully refreshed from Google Patents.
Patent FR53156E successfully refreshed from Google Patents.
FR53156E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Support collar allowing the removal or repair of water intakes on pipes under load without loss or water shutdown
Assignee: Charles-Louis Frey
•
Filing: 1943-09-06
•
Granted: 1945-09-20
•
Expires: 1963-09-06
Abstract
No abstract record available.
Inventors
- 👤 Charles-Louis Frey
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 23:02
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F16L41/16; F16L41/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.