US1608709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for preventing corrosion of well tubing, casing, and working barrels
Assignee: PETER Q NYCE
•
Filing: 1924-09-10
•
Granted: 1926-11-30
•
Expires: 1944-09-10
Abstract
No abstract record available.
Inventors
- 👤 Mills Ronald Van Auken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:27
CPC Classifications
E; E21; E21B; E21B41/00; E21B41/02; Y; Y10; Y10S; Y10S138/00; Y10S138/06; Y10S166/00; Y10S166/902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-11-29 | 1930-05-31 | 1930-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-11-29 | 1934-05-31 | 1934-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-11-29 | 1938-05-31 | 1938-11-30 | $7700.00 | Window Closed / Lapsed |