US3309908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling method and apparatus
Assignee: General Electric Co
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Filing: 1964-09-28
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Granted: 1967-03-21
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis F Coffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:51
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/222; B21D; B21D1/00; B21D1/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
APPARATUS FOR INCREASING THE LENGTH AND REDUCING THE THICKNESS OF METAL STRIP, SHEET OR FOIL STOCK WHICH COMPRISES TWO CONTACT ROLLS TOGETHER DEFINING A GAP OR SADDLE, A FLOATING THIRD ROLL DISPOSED BETWEEN THE TWO CONTACT ROLLS AND HAVING A STRIP-ENGAGING CENTRAL PORTION AND END PORTIONS, AND THIRD ROLL BENDING MEANS ENGAGING THE THIRD ROLL AT TWO PAINTS SEPARATED BY THE SAID CENTRAL PORTION TO MOVE SAID END PORTIONS TOWARD THE TWO CONTACT ROLLS.
Claim 2
Dependent Claim
74 words
APPARATUS FOR INCREASING THE LENGTH AND REDUCING THE THICKNESS OF METAL STRIP, SHEET OR FOIL STOCK WHICH COMPRISES TWO CONTACT ROLLS TOGETHER DEFINING A GAP OR SADDLE, A FLOATING THIRD ROLL DISPOSED BETWEEN THE TWO CONTACT ROLLS AND HAVING A STRIP-ENGAGING CENTRAL PORTION AND END PORTIONS, AND THIRD ROLL BENDING MEANS ENGAGING THE THIRD ROLL AT TWO PAINTS SEPARATED BY THE SAID CENTRAL PORTION TO MOVE SAID END PORTIONS TOWARD THE TWO CONTACT ROLLS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |