US3157283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Changing the mandrel of a tubeextrusion press
Assignee: Schloemann AG
•
Filing: 1961-11-13
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Granted: 1964-11-17
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Maass Franz
- 👤 Wehmeyer Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:19
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/21; B21C23/217; B21C23/212; B21C23/214; Y; Y10; Y10S; Y10S483/00; Y10S483/902; Y10T; Y10T483/00; Y10T483/17; Y10T483/1729
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1401405A
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US1884874A
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US1736009A
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US2264012A
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US2929499A
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DE1054945B
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US2976943A
Cited
US2901927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |