US2451431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable play pen
Assignee: Individual
•
Filing: 1944-12-05
•
Granted: 1948-10-12
•
Expires: 1964-12-05
Abstract
No abstract record available.
Inventors
- 👤 Milbert D Bible
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:03
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/06; A47D13/061; A47D13/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US115742A
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US472518A
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US485896A
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US619007A
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US758593A
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US925256A
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US1260886A
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US1456519A
Cited
US2097506A
Cited
FR827651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |