Patent US2620857A successfully refreshed from Google Patents.
US2620857A
Expired / Lapsed
US
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Baby chair with side guards
Assignee: Individual
•
Filing: 1950-10-31
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Granted: 1952-12-09
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Expires: 1970-10-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Sarnak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:35
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/021; A47C3/023; A47C5/00; A47C5/04; A47C5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1656352A
Cited
US2044862A
Cited
US2365003A
Cited
US2418731A
Cited
US2522394A
Cited
US2461123A
Cited
US2550811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |