Patent US4903279A successfully refreshed from Google Patents.
Patent US2705425A successfully refreshed from Google Patents.
US2705425A
Expired / Lapsed
US
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Apparatus for taking samples of sewage and other flows
Assignee: Individual
•
Filing: 1949-12-30
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Granted: 1955-04-05
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Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
- 👤 Hartley Cyril John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:34
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01N2001/1031; G01N2001/1043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US818643A
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US946744A
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US955193A
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US1228078A
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US1483861A
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US1899126A
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US2196403A
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US2196681A
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US2335364A
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US2348806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |