US2554433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block handling machine
Assignee: Individual
•
Filing: 1945-07-19
•
Granted: 1951-05-22
•
Expires: 1965-07-19
Abstract
No abstract record available.
Inventors
- 👤 Millard R Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:41
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90; Y; Y10; Y10S; Y10S294/00; Y10S294/902; Y10S414/00; Y10S414/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US619834A
Cited
US1724304A
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US820946A
Cited
US1010501A
Cited
US1302861A
Cited
US1427469A
Cited
US1490235A
Cited
US1878994A
Cited
US2375045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |