US2728301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear pump
Assignee: LINDBERG TRUST
•
Filing: 1952-06-17
•
Granted: 1955-12-27
•
Expires: 1972-06-17
Abstract
No abstract record available.
Inventors
- 👤 Paul G Lindberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:51
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0057; F04C15/0061; F04C15/0003; F04C15/0023; F04C15/0026; F04C15/0042
Claims Analysis
Total Claims: 0
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US2691945A
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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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |