Patent US2465604A successfully refreshed from Google Patents.
US2465604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: American Hoist and Derrick Co
•
Filing: 1944-09-30
•
Granted: 1949-03-29
•
Expires: 1964-09-30
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:23
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/16; B63B27/00; B63B27/08; B66; B66D; B66D1/00; B66D1/02; B66D1/12; B66D1/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US780368A
Cited
US1192322A
Cited
GB217007A
Cited
US1863401A
Cited
US1938071A
Cited
US2116013A
Cited
US2240737A
Cited
US2317171A
Cited
US2352395A
Cited
US2379858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |