US2796031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump or motor with pressure loading
Assignee: Geo D Roper Corp
•
Filing: 1953-10-13
•
Granted: 1957-06-18
•
Expires: 1973-10-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:11
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0023; F04C15/0026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2105259A
Cited
US2147777A
Cited
US2211154A
Cited
US2146395A
Cited
US2252661A
Cited
US2622534A
Cited
US2639672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |