US3409068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of continuously casting tubes using a rotating mandrel
Assignee: Phelps Dodge Copper Products Corp
•
Filing: 1966-03-01
•
Granted: 1968-11-05
•
Expires: 1986-03-01
Abstract
No abstract record available.
Inventors
- 👤 Douglas C Yearley
- 👤 Jr Harry H Stout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:27
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/006; B22D11/04; B22D11/0401; B22D11/049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US238515A
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US2707813A
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US2941266A
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US3103718A
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US3228075A
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US3268959A
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NL6403321A
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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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |