Patent FR1300510A successfully refreshed from Google Patents.
Patent US3475941A successfully refreshed from Google Patents.
US3475941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube extrusion presses with a retractable die carrier
Assignee: Schloemann AG
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Filing: 1966-08-15
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Granted: 1969-11-04
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Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 Horst Hans Groos
- 👤 Friedrich Niggemeier
- 👤 Heinz Stapel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:43
CPC Classifications
B; B21; B21C; B21C35/00; B21C35/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |