Patent US2907872A successfully refreshed from Google Patents.
DE1034786B
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the manufacture of spinnerets
Assignee: Carl Zeiss SMT GmbH
•
Filing: 1952-02-27
•
Granted: —
•
Expires: 1972-02-27
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Phys Karl Hei Steigerwald
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/31
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE712434C
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.