Patent US2515523A successfully refreshed from Google Patents.
US2515523A
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US
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Flask or test tube holder
Assignee: Carnegie Illinois Steel Corp
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Filing: 1947-05-08
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Granted: 1950-07-18
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Expires: 1967-05-08
Abstract
No abstract record available.
Inventors
- 👤 Mancino Christy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:28
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US554661A
Cited
US1052234A
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US1185404A
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US1244050A
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US1262920A
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US1294883A
Cited
US1826474A
Cited
US2267675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |