Patent US1858291A successfully refreshed from Google Patents.
US1858291A
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Assignee: Burdett Manufacturing Co
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Filing: 1930-05-29
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Granted: 1932-05-17
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Expires: 1950-05-29
Abstract
No abstract record available.
Inventors
- 👤 John B Burdett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:27
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/04; F17C13/045; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/2569; Y10T137/4673; Y10T137/4857; Y10T137/7722; Y10T137/7781; Y10T137/7793
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) | 1935-05-17 | 1935-11-16 | 1936-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-05-17 | 1939-11-16 | 1940-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-05-17 | 1943-11-16 | 1944-05-17 | $7700.00 | Window Closed / Lapsed |