US3394568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rolling seamless tubes
Assignee: CONTUBIND SA
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Filing: 1964-12-29
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Granted: 1968-07-30
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Calmes Albert Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:44
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/32; B21B; B21B17/00; B21B17/02; B21B17/04; B21B17/08; B21B19/00; B21B19/02; B21B19/04; B21B25/00; B21B25/04; B21B45/00; B21B45/02; B21B45/0239; B21B45/0245; B21B45/0248; B21B2045/026; B21B39/00; B21B39/20; B21B45/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T29/49986
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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |