Patent US1074797A successfully refreshed from Google Patents.
US1074797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-operated deep-well pump.
Assignee: Individual
•
Filing: 1912-09-26
•
Granted: 1913-10-07
•
Expires: 1932-09-26
Abstract
No abstract record available.
Inventors
- 👤 Paul G Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:32
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; E21B43/121; E21B43/122; E21B43/123
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) | 1916-10-06 | 1917-04-07 | 1917-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-10-06 | 1921-04-07 | 1921-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-10-06 | 1925-04-07 | 1925-10-07 | $7700.00 | Window Closed / Lapsed |