US2621622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming ringlike bodies
Assignee: Continental Can Co Inc
•
Filing: 1946-03-14
•
Granted: 1952-12-16
•
Expires: 1966-03-14
Abstract
No abstract record available.
Inventors
- 👤 Henchert John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/16; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/14; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/4979; Y10T83/00; Y10T83/384; Y10T83/394; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4836
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) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |