US2637450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article stacking apparatus
Assignee: Individual
•
Filing: 1949-10-14
•
Granted: 1953-05-05
•
Expires: 1969-10-14
Abstract
No abstract record available.
Inventors
- 👤 Eshelman Alvin Lenhert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:51
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/03; B65G57/06; B65G57/035; B65G57/09; B65G57/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1488431A
Cited
US1623357A
Cited
US1601971A
Cited
US2065674A
Cited
US2113926A
Cited
US2315003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |