US2561339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for laboratory investigations
Assignee: Individual
•
Filing: 1944-01-10
•
Granted: 1951-07-24
•
Expires: 1964-01-10
Abstract
No abstract record available.
Inventors
- 👤 Chediak Alejandro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:23
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US10754A
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US426943A
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US529766A
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GB191028155A
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US1153185A
Cited
US1159206A
Cited
US1839573A
Cited
US1775134A
Cited
US1975245A
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US2194131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |