US2388640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well point
Assignee: Individual
•
Filing: 1943-12-17
•
Granted: 1945-11-06
•
Expires: 1963-12-17
Abstract
No abstract record available.
Inventors
- 👤 Edward J Moore
- 👤 Dacey Mary Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:01
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/20; E21B43/00; E21B43/02; E21B43/08; E21B43/084; E21B7/18
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) | 1948-11-05 | 1949-05-07 | 1949-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-11-05 | 1953-05-07 | 1953-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-11-05 | 1957-05-07 | 1957-11-06 | $7700.00 | Window Closed / Lapsed |