US2712249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for flattening internal beads in welded tubing
Assignee: Continental Foundry & Machine
•
Filing: 1950-03-10
•
Granted: 1955-07-05
•
Expires: 1970-03-10
Abstract
No abstract record available.
Inventors
- 👤 Siegerist Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:12
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B21C37/0807; B21C37/0811; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5182
Claims Analysis
Total Claims: 0
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FR837391A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |