Patent US2511508A successfully refreshed from Google Patents.
US2511508A
Expired / Lapsed
US
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Seat for side wall sampling tools
Assignee: Individual
•
Filing: 1946-02-14
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Granted: 1950-06-13
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Expires: 1966-02-14
Abstract
No abstract record available.
Inventors
- 👤 Mcclinton John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:20
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/04; E21B7/06; E21B7/061; E21B25/00; E21B25/02; E21B25/04; E21B49/00; E21B49/02; E21B49/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US281922A
Cited
US2176375A
Cited
US2173531A
Cited
US2285024A
Cited
US2347726A
Cited
US2358470A
Cited
US2344598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |