Patent US3533152A successfully refreshed from Google Patents.
US3533152A
Expired / Lapsed
US
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Method for the production of a seamless tubular wire filled with a powdery material
Assignee: ELEKTRODENFABRIK DERLIKON BUHR
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Filing: 1967-11-20
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Granted: 1970-10-13
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Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Karl Gloor
- 👤 Hans Baach
- 👤 Hans Dieter Jacubasch
- 👤 Rudolf Stein
- 👤 Hans Dieter Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:47
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; B21C37/042; B21C1/00; B21C1/16; B21C1/22; B23; B23K; B23K35/00; B23K35/40; B23K35/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1501266A
Cited
US2888740A
Cited
US2700091A
Cited
US3245140A
Cited
US3429025A
Cited
US3365565A
Cited
US3404200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |