Patent US2822933A successfully refreshed from Google Patents.
US2822933A
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US
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Apparatus for handling materials
Assignee: Ballentine & Sons P
•
Filing: 1953-12-09
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Granted: 1958-02-11
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Expires: 1973-12-09
Abstract
No abstract record available.
Inventors
- 👤 William G Pagdin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:52
CPC Classifications
B; B65; B65G; B65G59/00; B65G59/02; B65G59/04; B65G57/00; B65G57/02; B65G57/03; B65G57/04; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US711947A
Cited
US2609108A
Cited
US2598222A
Cited
US2633251A
Cited
US2703182A
Cited
US2675928A
Cited
US2716497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |