Patent US3237441A successfully refreshed from Google Patents.
US3237441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube rolling mill plugs
Assignee: Babcock and Wilcox Co
•
Filing: 1963-05-01
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Granted: 1966-03-01
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Expires: 1983-05-01
Abstract
No abstract record available.
Inventors
- 👤 Fritz T Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:09
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07; B; B21; B21B; B21B25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
IN A METAL DEFORMING APPARATUS, THE COMBINATION OF AT LEAST TWO COOPERATING ROLLS AND A CONICAL PLUG BETWEEN SAID ROLLS, SAID PLUG BEING COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY AS FOLLOWS:
Claim 2
Dependent Claim
31 words
IN A METAL DEFORMING APPARATUS, THE COMBINATION OF AT LEAST TWO COOPERATING ROLLS AND A CONICAL PLUG BETWEEN SAID ROLLS, SAID PLUG BEING COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY AS FOLLOWS:
References Cited (Backward Citations)
USRE21957E
Cited
CA639056A
Cited
US1931571A
Cited
US2197098A
Cited
DE914576C
Cited
US2515775A
Cited
US2771360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |