US2477446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring expander
Assignee: Individual
•
Filing: 1946-06-07
•
Granted: 1949-07-26
•
Expires: 1966-06-07
Abstract
No abstract record available.
Inventors
- 👤 Newell K Farner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:18
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/0028; A; A01; A01K; A01K35/00; B25B27/14; B25B27/28; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53657
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) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |