Patent US3184320A successfully refreshed from Google Patents.
US2431121A
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US
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Assignee: Individual
•
Filing: 1944-11-09
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Granted: 1947-11-18
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Expires: 1964-11-09
Abstract
No abstract record available.
Inventors
- 👤 Melmoth W Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:12
CPC Classifications
G; G07; G07D; G07D1/00; G07D1/02; G07D1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US517175A
Cited
US570113A
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US1390934A
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US1201963A
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US1274615A
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US1463894A
Cited
US2092745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |