US2430847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve seat insert tool
Assignee: ConocoPhillips Co
•
Filing: 1945-01-01
•
Granted: 1947-11-11
•
Expires: 1965-01-01
Abstract
No abstract record available.
Inventors
- 👤 Nels J Kirk
- 👤 Howard W Bottger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:14
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; B25B27/02; B25B27/06; B25B27/062; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53848; Y10T29/53857; Y10T29/53878; Y10T29/53887
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US869861A
Cited
US1126612A
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US1246415A
Cited
GB367139A
Cited
US2037199A
Cited
US2282629A
Cited
US2292739A
Cited
US2310639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |