Patent DE238196C successfully refreshed from Google Patents.
US3554831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing thin-foil strips
Assignee: Siemens AG
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Filing: 1968-09-12
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Granted: 1971-01-12
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Expires: 1988-09-12
Abstract
Abstract METHODS AND PROCESSES FOR PRODUCING THIN-FOIL STRIPS BY WINDING THIN-FOIL STRIPS ONTO AN AUXILIARY CARRIER LAYER AND THEN UNWINDING THEM SO AS TO FORM A COMPOSITE STRIP OF FOIL LAYERS.
Inventors
- 👤 Hermann Schill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:39
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |