Patent US5474543A successfully refreshed from Google Patents.
US1689673A
Expired / Lapsed
US
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Gear pump
Assignee: LALOR FUEL OIL SYSTEM Co
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Filing: 1925-06-13
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Granted: 1928-10-30
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Expires: 1945-06-13
Abstract
No abstract record available.
Inventors
- 👤 James D Lalor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:17
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26
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) | 1931-10-30 | 1932-04-30 | 1932-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-10-30 | 1936-04-30 | 1936-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-10-30 | 1940-04-30 | 1940-10-30 | $7700.00 | Window Closed / Lapsed |