Patent US2369553A successfully refreshed from Google Patents.
US3028979A
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Sheet pack stacking apparatus
Assignee: American Manufacturing Co Inc
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Filing: 1956-03-27
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Granted: 1962-04-10
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Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Henry E Zachow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:51
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/34; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/101
Claims Analysis
Total Claims: 0
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US2785928A
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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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |