Patent US3038412A successfully refreshed from Google Patents.
US3038412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable displacement pump
Assignee: —
•
Filing: —
•
Granted: 1962-06-12
•
Expires: 1979-06-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:22
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/04; F04D13/043; F04C; F04C14/00; F04C14/08; F04C14/10; F04C2/00; F04C2/08; F04C2/10; F04C2/102
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |