US2447744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping unit
Assignee: Gilbarco Inc
•
Filing: 1944-04-01
•
Granted: 1948-08-24
•
Expires: 1964-04-01
Abstract
No abstract record available.
Inventors
- 👤 Virgil E Duemler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:29
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C13/00; F04C13/005; F04C15/00; F04C15/0057; F04C15/0061; F04C2/00; F04C2/08; F04C2/12; F04C2/14; F04C2/18; F04C2210/00; F04C2210/10; F04C2210/60; F04C2210/62; F04C2230/00; F04C2230/70; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5283
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) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |