US2426335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side wall sampling apparatus
Assignee: Individual
•
Filing: 1943-11-08
•
Granted: 1947-08-26
•
Expires: 1963-11-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas A Banning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:34
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/02; E21B49/06; Y; Y10; Y10S; Y10S60/00; Y10S60/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2005913A
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US1935123A
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US2173532A
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GB548727A
Cited
US2303727A
Cited
US2344598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |