Patent US3084745A successfully refreshed from Google Patents.
US3084745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wellhead equipment
Assignee: Individual
•
Filing: 1960-06-03
•
Granted: 1963-04-09
•
Expires: 1980-06-03
Abstract
No abstract record available.
Inventors
- 👤 James F Floyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:53
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1891508A
Cited
US2035834A
Cited
US2134311A
Cited
US2118094A
Cited
US2187839A
Cited
US2889886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |