Patent US2490956A successfully refreshed from Google Patents.
US2490956A
Expired / Lapsed
US
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Extensible brace for articulated beds
Assignee: Individual
•
Filing: 1944-08-11
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Granted: 1949-12-13
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Expires: 1964-08-11
Abstract
No abstract record available.
Inventors
- 👤 Robert R Freund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:42
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/02; A47B91/022; A47B91/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH30263A
Cited
US844674A
Cited
US1901174A
Cited
US2150397A
Cited
US2183410A
Cited
US2283324A
Cited
CH216652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |