Patent FR656972A successfully refreshed from Google Patents.
← Back to Patent Explorer
FR656972A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements to the ventilation of dynamo-electric machines, transformers and the like

Assignee: Charles Algernon Parsons
•
Filing: 1928-07-04
•
Granted: 1929-05-15
•
Expires: 1948-07-04
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Charles Algernon Parsons

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-31 13:33
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/20; H02K9/00; H02K9/10; H02K9/12

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag