US2159217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controllable transfer element for multiple ampules
Assignee: COOK LAB Inc
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Filing: 1937-11-05
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Granted: 1939-05-23
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Expires: 1957-11-05
Abstract
No abstract record available.
Inventors
- 👤 Lozier Matthew
- 👤 Clayton H Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:50
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2093; A61J1/2096; A61M; A61M5/00; A61M5/178; A61M5/24; B; B67; B67B; B67B7/00; B67B7/92; A61J1/2003; A61J1/2006; A61J1/201; A61J1/202; A61J1/2027; A61M2005/2403; A61M2005/2407; A61M5/31; A61M2005/3128; A61M5/2448; A61M5/32; A61M5/34; A61M5/344; A61M5/347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-22 | 1942-11-21 | 1943-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-22 | 1946-11-21 | 1947-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-22 | 1950-11-21 | 1951-05-23 | $7700.00 | Window Closed / Lapsed |