US2532141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split ring expander
Assignee: Eaton Corp
•
Filing: 1947-07-09
•
Granted: 1950-11-28
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Expires: 1967-07-09
Abstract
No abstract record available.
Inventors
- 👤 Louis R Barkan
- 👤 Morris L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:41
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/20; B25B27/205; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/536; Y10T29/53604; Y10T29/53609; Y10T29/53613; Y10T29/5363
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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |