US3605139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible playpen
Assignee: Individual
•
Filing: 1969-03-03
•
Granted: 1971-09-20
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Expires: 1989-03-03
Abstract
Abstract THE CONTAINER INCLUDES CENTER SUPPORT, AN ANNULAR LAZY TONG ENCLOSURE UNIT POSITIONED ON A VERTICAL AXIS AND EXPANDABLE AND COLLAPSIBLE CIRCUMFERENTIALLY, A PLURALITY OF SUPPORT SLATS ATTACHED TO THE CENTER SUPPORT, AND HINGE MEANS PIVOTALLY SECURING THE OUTER ENDS OF THE SLATS TO A LOWER PORTION OF THE ANNULAR ENCLOSURE UNIT.
Inventors
- 👤 Herbert T Lorentz Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:18
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)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |