US2872818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid sampling system
Assignee: Individual
•
Filing: 1955-09-02
•
Granted: 1959-02-10
•
Expires: 1975-09-02
Abstract
No abstract record available.
Inventors
- 👤 Johnson Julius Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:00
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/16; G01N1/18; G01N2001/1087; G01N2001/1093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US669347A
Cited
US1101568A
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US1581633A
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DE673751C
Cited
US2177477A
Cited
US2158803A
Cited
US2240888A
Cited
US2604248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |