Patent US2947428A successfully refreshed from Google Patents.
US2947428A
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Machine for stacking paper including oppositely withdrawable adjacent stack supports
Assignee: Rice Barton Corp
•
Filing: 1954-04-29
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Granted: 1960-08-02
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Expires: 1974-04-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Curtenius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:23
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/34; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/101; Y10S414/102; Y10S414/103; Y10S414/105; Y10T; Y10T83/00; Y10T83/202; Y10T83/2033; Y10T83/2037; Y10T83/2046; Y10T83/2092; Y10T83/2198
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2323174A
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US2273689A
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US2648380A
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US2701650A
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US2741308A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |