US1912737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable displacement gear pump
Assignee: Babcock and Wilcox Co
•
Filing: 1930-02-24
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Granted: 1933-06-06
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Expires: 1950-02-24
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Svenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:44
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F04C2/00; F04C2/08; F04C2/082; F04C2/088
Claims Analysis
Total Claims: 0
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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) | 1936-06-05 | 1936-12-05 | 1937-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-06-05 | 1940-12-05 | 1941-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-06-05 | 1944-12-05 | 1945-06-06 | $7700.00 | Window Closed / Lapsed |