US3051244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well liner running and supporting apparatus
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1960-03-22
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Granted: 1962-08-28
•
Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Mason R Litchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:33
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/063; E21B21/00; E21B21/10; E21B21/103; E21B34/14; E21B34/142; E21B43/00; E21B43/02; E21B43/10; Y; Y10; Y10S; Y10S285/00; Y10S285/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2315931A
Cited
US2409811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |