US3052302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool carrier with by-pass
Assignee: Shell USA Inc
•
Filing: 1960-07-25
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Granted: 1962-09-04
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Edward B Lagucki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:56
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/08; E21B23/10; E21B33/00; E21B33/10; E21B33/12; E21B33/127; E21B37/00; E21B37/02; E21B37/04; E21B37/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |