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US2436751A
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Discharger
Assignee: Eureka Williams Co
•
Filing: 1945-02-19
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Granted: 1948-02-24
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Expires: 1965-02-19
Abstract
No abstract record available.
Inventors
- 👤 Kemper M Hammell
- 👤 Frederick K Comiskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:51
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US617576A
Cited
US1436534A
Cited
US1947834A
Cited
US2307009A
Cited
US2340047A
Cited
US2350717A
Cited
US2354025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |