US2465604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: American Hoist and Derrick Co
•
Filing: 1944-09-30
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Granted: 1949-03-29
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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 06:17
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
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References Cited (Backward Citations)
US780368A
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US1192322A
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GB217007A
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US1863401A
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US1938071A
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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 |