US2578802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling industrial truck
Assignee: Individual
•
Filing: 1948-12-06
•
Granted: 1951-12-18
•
Expires: 1968-12-06
Abstract
No abstract record available.
Inventors
- 👤 Fred C Heidrick
- 👤 Joseph A Heidrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:31
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US214929A
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US1300620A
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US1564926A
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US1896543A
Cited
US1900569A
Cited
US1971952A
Cited
US2281012A
Cited
US2403356A
Cited
US2420828A
Cited
US2432182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |