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US2424144A
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Assignee: E M THORSEN
•
Filing: 1943-11-08
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Granted: 1947-07-15
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Expires: 1963-11-08
Abstract
No abstract record available.
Inventors
- 👤 Sophie E Bruen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:57
CPC Classifications
A; A47; A47B; A47B63/00; A47B63/06; A47B63/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US796199A
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US896294A
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US1227704A
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US1269243A
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US1942356A
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AU280631A
Cited
US2235736A
Cited
US2240325A
Cited
US2334785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-14 | 1951-01-13 | 1951-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-14 | 1955-01-13 | 1955-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-14 | 1959-01-13 | 1959-07-15 | $7700.00 | Window Closed / Lapsed |