US3061010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locator for collars joining pipe lengths
Assignee: MCELHENY
•
Filing: 1958-08-15
•
Granted: 1962-10-30
•
Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Martin B Conrad
- 👤 John B Mcelheny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:11
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2191750A
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US2199020A
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US2280769A
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US2380022A
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US2613746A
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US2741316A
Cited
US2746550A
Cited
US2856007A
Cited
US2924278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |