Patent US1619759A successfully refreshed from Google Patents.
US1619759A
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Assignee: Commercial Shearing Inc
•
Filing: 1926-02-17
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Granted: 1927-03-01
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Expires: 1946-02-17
Abstract
No abstract record available.
Inventors
- 👤 Robert V Proctor
- 👤 Harry M Schaab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:46
CPC Classifications
F; F26; F26B; F26B25/00; F26B25/06; F26B25/14; F26B25/18; Y; Y10; Y10S; Y10S425/00; Y10S425/117
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) | 1930-02-28 | 1930-08-30 | 1931-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-02-28 | 1934-08-30 | 1935-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-02-28 | 1938-08-30 | 1939-03-01 | $7700.00 | Window Closed / Lapsed |