Patent US2583836A successfully refreshed from Google Patents.
US2583836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silo filler pipe
Assignee: AO Smith Corp
•
Filing: 1946-12-05
•
Granted: 1952-01-29
•
Expires: 1966-12-05
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Gruetjen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:18
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US188234A
Cited
US144690A
Cited
US1145550A
Cited
US1265442A
Cited
US1466292A
Cited
US1496585A
Cited
US1869021A
Cited
US1842298A
Cited
US2259453A
Cited
FR861491A
Cited
US2318576A
Cited
US2305423A
Cited
US2353029A
Cited
US2396086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |