US2991487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible bed rail
Assignee: CAL DAK CO
•
Filing: 1958-10-20
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Granted: 1961-07-11
•
Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 Beckwell George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:10
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/0507; A47; A47C; A47C21/00; A47C21/08; A61G7/0518
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA486800A
Cited
US1360052A
Cited
US1702876A
Cited
US1915774A
Cited
US2555228A
Cited
US2602171A
Cited
US2859454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |