US2425728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress
Assignee: —
•
Filing: —
•
Granted: 1947-08-19
•
Expires: 1964-08-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:48
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/05; A47C27/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE278795C
Cited
US27667A
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US137030A
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US926375A
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GB129415A
Cited
US1700339A
Cited
US1846312A
Cited
US1916056A
Cited
GB407207A
Cited
US2146059A
Cited
US2326441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |