US3459023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: United Engineering and Foundry Co
•
Filing: 1967-03-28
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Granted: 1969-08-05
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Expires: 1987-03-28
Abstract
No abstract record available.
Inventors
- 👤 James Richard Adair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:34
CPC Classifications
B; B21; B21B; B21B39/00; B21B39/14; B21B39/16; B21B39/165; B21B31/00; B21B31/08; B21B31/10; F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/044; B21B2203/00; B21B2203/36
Claims Analysis
Total Claims: 0
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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) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |