← Back to Patent Explorer
DE647987C Expired / Lapsed DE ⏱️ 0.0 years remaining

Clamping strips, which are parallel to a drawing board and can be slid along the length, for stretching drawing sheets

Assignee: Individual
•
Filing: 1934-10-16
•
Granted: 1937-07-19
•
Expires: 1954-10-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-31 00:13
CPC Classifications
B; B43; B43L; B43L5/00; B43L5/02

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