US2810554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Play pen
Assignee: Individual
•
Filing: 1953-04-29
•
Granted: 1957-10-22
•
Expires: 1973-04-29
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Blazey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:33
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)
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US2020039A
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US2001528A
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US2488750A
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FR1025338A
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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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |