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Patent US2920916A successfully refreshed from Google Patents.
US2920916A
Expired / Lapsed
US
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Apparatus for handling materials
Assignee: P Ballantine & Sons
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Filing: 1956-02-17
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Granted: 1960-01-12
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Expires: 1976-02-17
Abstract
No abstract record available.
Inventors
- 👤 William G Pagdin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:49
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/03; B65G57/04; B66; B66C; B66C1/00; B66C1/02; B66C1/0212; B66C1/0231
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1304196A
Cited
US2609113A
Cited
US2578220A
Cited
US2812061A
Cited
US2716497A
Cited
US2715038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |