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Patent US1909393A successfully refreshed from Google Patents.
US1909393A
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Assignee: Sargent and Greenleaf Inc
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Filing: 1930-04-09
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Granted: 1933-05-16
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Expires: 1950-04-09
Abstract
No abstract record available.
Inventors
- 👤 William F Diesel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:32
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/0031; Y; Y10; Y10S; Y10S70/00; Y10S70/71; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/577; Y10T70/5792; Y10T70/5796; Y10T70/70; Y10T70/7141; Y10T70/80; Y10T70/8297; Y10T70/8378
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) | 1936-05-15 | 1936-11-14 | 1937-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-15 | 1940-11-14 | 1941-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-15 | 1944-11-14 | 1945-05-16 | $7700.00 | Window Closed / Lapsed |