US2495422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coring device
Assignee: Individual
•
Filing: 1946-10-22
•
Granted: 1950-01-24
•
Expires: 1966-10-22
Abstract
No abstract record available.
Inventors
- 👤 Everett E Rigney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:12
CPC Classifications
A; A23; A23N; A23N4/00; A23N4/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE95568C
Cited
US227912A
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US250474A
Cited
US1762438A
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US1775918A
Cited
US1923712A
Cited
US2141204A
Cited
US2359881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |