US2850776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll constructions for continuous casting machines
Assignee: Hunter Engineering Co
•
Filing: 1956-12-03
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Granted: 1958-09-09
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Expires: 1976-12-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:40
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/06; B22D11/0637; B22D11/068; B22D11/0682
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US544782A
Cited
USRE21260E
Cited
US1583333A
Cited
US1598721A
Cited
US2108070A
Cited
US2171132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |