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US1590570A
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Assignee: Individual
•
Filing: 1924-10-28
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Granted: 1926-06-29
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Expires: 1944-10-28
Abstract
No abstract record available.
Inventors
- 👤 Roy N Flack
- 👤 Lewis D Sturm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:00
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/611; E05F15/616; E05F15/622; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/47; E05Y2201/474; E05Y2201/60; E05Y2201/622; E05Y2201/624; E05Y2400/00; E05Y2400/10; E05Y2400/50; E05Y2400/502; E05Y2800/00; E05Y2800/20; E05Y2800/21; E05Y2800/40; E05Y2800/404; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18688
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) | 1929-06-28 | 1929-12-28 | 1930-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-06-28 | 1933-12-28 | 1934-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-06-28 | 1937-12-28 | 1938-06-29 | $7700.00 | Window Closed / Lapsed |