Patent US2954869A successfully refreshed from Google Patents.
US2954869A
Expired / Lapsed
US
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Extrusion press
Assignee: LAKE ERIE MACHINERY Corp
•
Filing: 1957-08-14
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Granted: 1960-10-04
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Expires: 1977-08-14
Abstract
No abstract record available.
Inventors
- 👤 Carl G A Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:26
CPC Classifications
B; B21; B21C; B21C35/00; B21C35/04; B21C23/00; B21C23/21; B21C23/212; B21C33/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |