US2728133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making metallic rings
Assignee: HERBERT E EDWARDS
•
Filing: 1950-12-14
•
Granted: 1955-12-27
•
Expires: 1970-12-14
Abstract
No abstract record available.
Inventors
- 👤 Andersen Laurits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:06
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/14; B21; B21D; B21D53/00; B21D53/16; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116; Y10T83/00; Y10T83/384; Y10T83/387
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |