US2455433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: EIDP Inc
•
Filing: 1944-12-22
•
Granted: 1948-12-07
•
Expires: 1964-12-22
Abstract
No abstract record available.
Inventors
- 👤 Matsen Morris
- 👤 Earl R Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:05
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/42; B65B43/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US633253A
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US906214A
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US1278097A
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US1615485A
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DE489264C
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US1899446A
Cited
US2031708A
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AT143252B
Cited
US2115620A
Cited
US2151107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-07 | 1952-06-07 | 1952-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-07 | 1956-06-07 | 1956-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-07 | 1960-06-07 | 1960-12-07 | $7700.00 | Window Closed / Lapsed |