US2612205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming tubular l's
Assignee: Dresser Industries Inc
•
Filing: 1946-08-31
•
Granted: 1952-09-30
•
Expires: 1966-08-31
Abstract
No abstract record available.
Inventors
- 👤 Seibert Carl Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:35
CPC Classifications
B; B21; B21D; B21D9/00; B21D9/08
Claims Analysis
Total Claims: 0
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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) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |