Patent US2077439A successfully refreshed from Google Patents.
US2077439A
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US
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Registering sheet feed
Assignee: AMF Inc
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Filing: 1931-01-06
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Granted: 1937-04-20
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Expires: 1951-01-06
Abstract
No abstract record available.
Inventors
- 👤 Schmitt Frank Reinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
B; B65; B65B; B65B41/00; B65B41/18; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/949; Y10T; Y10T83/00; Y10T83/444; Y10T83/4458; Y10T83/4597; Y10T83/4599; Y10T83/525; Y10T83/541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-04-19 | 1940-10-19 | 1941-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-04-19 | 1944-10-19 | 1945-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-04-19 | 1948-10-19 | 1949-04-20 | $7700.00 | Window Closed / Lapsed |