US2446384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt pump intake
Assignee: —
•
Filing: —
•
Granted: 1948-08-03
•
Expires: 1965-08-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:19
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/22; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7326; Y10T137/7358; Y10T137/7439; Y10T137/8593; Y10T137/86348; Y10T137/877; Y10T137/87829; Y10T137/87877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US557007A
Cited
US1803905A
Cited
US783878A
Cited
US1562991A
Cited
US1803604A
Cited
US1802326A
Cited
US2045909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-03 | 1952-02-02 | 1952-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-03 | 1956-02-02 | 1956-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-03 | 1960-02-02 | 1960-08-03 | $7700.00 | Window Closed / Lapsed |