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Patent US2738872A successfully refreshed from Google Patents.
US2738872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexed carrier for blood specimens
Assignee: Individual
•
Filing: 1954-06-09
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Granted: 1956-03-20
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Expires: 1974-06-09
Abstract
No abstract record available.
Inventors
- 👤 Boton Robert Jean Bernard De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:46
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/06; B01L2200/00; B01L2200/02; B01L2200/023; B01L2200/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1021998A
Cited
US1459943A
Cited
US1821753A
Cited
US1914276A
Cited
US2512963A
Cited
US2640589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |