US2423879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom-fill truck tank
Assignee: PENNSYLVANIA FURNACE AND IRON
•
Filing: 1945-07-12
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Granted: 1947-07-15
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Expires: 1965-07-12
Abstract
No abstract record available.
Inventors
- 👤 Frees Joseph H De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:42
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/22; B60P3/24; Y; Y10; Y10S; Y10S220/00; Y10S220/24; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/4673; Y10T137/4807; Y10T137/4857; Y10T137/4874; Y10T137/8593; Y10T137/86348; Y10T137/86356
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1058033A
Cited
US987545A
Cited
US1372466A
Cited
US1603698A
Cited
US2092926A
Cited
US2384628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-14 | 1951-01-13 | 1951-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-14 | 1955-01-13 | 1955-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-14 | 1959-01-13 | 1959-07-15 | $7700.00 | Window Closed / Lapsed |