US2418552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scouring chain
Assignee: Individual
•
Filing: 1940-11-05
•
Granted: 1947-04-08
•
Expires: 1960-11-05
Abstract
No abstract record available.
Inventors
- 👤 Hasendahl Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:12
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/0804; B08B9/0817
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US396404A
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US422214A
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US700499A
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FR319334A
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US717004A
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US832545A
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US876220A
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US1214631A
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US1421997A
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US1431771A
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US1466566A
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US1701610A
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US1728266A
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US1741223A
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US1901345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-07 | 1950-10-07 | 1951-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-07 | 1954-10-07 | 1955-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-07 | 1958-10-07 | 1959-04-08 | $7700.00 | Window Closed / Lapsed |