US3050128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well packer
Assignee: Baker Hughes Holdings LLC
•
Filing: 1960-08-15
•
Granted: 1962-08-21
•
Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:58
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1802525A
Cited
US2121002A
Cited
US2270647A
Cited
US2467801A
Cited
US2590502A
Cited
US2624412A
Cited
US2695064A
Cited
US2714931A
Cited
US2762441A
Cited
US2872983A
Cited
US2868296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |