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US2182919A
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US
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Assignee: JESSIE HASSON RITCHIE
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Filing: 1939-01-12
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Granted: 1939-12-12
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Expires: 1959-01-12
Abstract
No abstract record available.
Inventors
- 👤 Hainsworth Arthur Sydney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:20
CPC Classifications
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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) | 1942-12-11 | 1943-06-12 | 1943-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-12-11 | 1947-06-12 | 1947-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-12-11 | 1951-06-12 | 1951-12-12 | $7700.00 | Window Closed / Lapsed |