US2440635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed tray for duplicating apparatus
Assignee: Ditto Inc
•
Filing: 1944-02-24
•
Granted: 1948-04-27
•
Expires: 1964-02-24
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Little
- 👤 Jagger Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:07
CPC Classifications
B; B65; B65H; B65H1/00; B65H1/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1565; Y10T74/1576
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US233757A
Cited
US682197A
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US1054998A
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US897199A
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US2130600A
Cited
US2149012A
Cited
US2236442A
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US2313633A
Cited
US2387503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |