US3493050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for removing water and the like from gas wells
Assignee: ROBERT K KELLEY
•
Filing: 1967-01-30
•
Granted: 1970-02-03
•
Expires: 1987-01-30
Abstract
No abstract record available.
Inventors
- 👤 Kork Kelley
- 👤 Robert K Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:28
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/2401; E21B43/12; E21B43/121; E21B43/13; E21B43/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US760304A
Cited
US782233A
Cited
US1140982A
Cited
US1342741A
Cited
US1327906A
Cited
US1358393A
Cited
US1414171A
Cited
US1934955A
Cited
US2647585A
Cited
US2725939A
Cited
US3070178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |