US2963070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller leveler
Assignee: Individual
•
Filing: 1955-11-04
•
Granted: 1960-12-06
•
Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Frederick K Maust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:01
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE296441C
Cited
US236853A
Cited
US1582571A
Cited
US2049142A
Cited
US2091789A
Cited
DE642790C
Cited
US2132426A
Cited
GB490908A
Cited
US2365114A
Cited
US2638143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |