Patent US2515522A successfully refreshed from Google Patents.
US2515522A
Expired / Lapsed
US
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Sediment test gun
Assignee: Individual
•
Filing: 1947-10-24
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Granted: 1950-07-18
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Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Lucas Junious Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1052391A
Cited
US1445770A
Cited
US1613166A
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US1849582A
Cited
US2099038A
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US2177060A
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US2307318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |