Patent US4349708A successfully refreshed from Google Patents.
US3455477A
Expired / Lapsed
US
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Material handling device
Assignee: UNITED Manufacturing Inc
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Filing: 1967-07-24
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Granted: 1969-07-15
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Expires: 1987-07-24
Abstract
No abstract record available.
Inventors
- 👤 Calvin B Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:41
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/40; B60P3/41; A; A01; A01D; A01D87/00; A01D87/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2705082A
Cited
US2768760A
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US3163304A
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US3008597A
Cited
US3208612A
Cited
US3305262A
Cited
US3338442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |