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Patent US3034187A successfully refreshed from Google Patents.
US3034187A
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Dual string tubing clamp
Assignee: Phillips Petroleum Co
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Filing: 1959-08-14
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Granted: 1962-05-15
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Expires: 1979-08-14
Abstract
No abstract record available.
Inventors
- 👤 Glen G Hebard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:32
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/04; F16L23/08; F16B; F16B2/00; F16B2/02
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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |