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Patent US2122186A successfully refreshed from Google Patents.
US2122186A
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Round-cornering machine
Assignee: Individual
•
Filing: 1937-04-06
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Granted: 1938-06-28
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Expires: 1957-04-06
Abstract
No abstract record available.
Inventors
- 👤 Southworth Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:39
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/44; B26D3/00; B26D3/02; Y; Y10; Y10T; Y10T83/00; Y10T83/566; Y10T83/5669; Y10T83/5696; Y10T83/748; Y10T83/7487; Y10T83/758; Y10T83/7593; Y10T83/7647; Y10T83/7653; Y10T83/869; Y10T83/8776; Y10T83/8785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-06-27 | 1941-12-27 | 1942-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-06-27 | 1945-12-27 | 1946-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-06-27 | 1949-12-27 | 1950-06-28 | $7700.00 | Window Closed / Lapsed |