Patent US2476250A successfully refreshed from Google Patents.
US2476250A
Expired / Lapsed
US
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Sheet assembling apparatus
Assignee: Ditto Inc
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Filing: 1944-04-20
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Granted: 1949-07-12
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Expires: 1964-04-20
Abstract
No abstract record available.
Inventors
- 👤 Paulsen Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:44
CPC Classifications
B; B42; B42C; B42C9/00; B42C9/0081; B42C9/0087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1131836A
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US1236054A
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US1345664A
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US1584020A
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US1807843A
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US1935031A
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US2222983A
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US2205443A
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US2260582A
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US2277924A
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US2394935A
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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) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |