US2494380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guided carriage means for flushing the interior of lengths of pipe
Assignee: Phillips Petroleum Co
•
Filing: 1945-12-10
•
Granted: 1950-01-10
•
Expires: 1965-12-10
Abstract
No abstract record available.
Inventors
- 👤 Carl G Ellig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:14
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/043; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |