Patent US2589053A successfully refreshed from Google Patents.
US2589053A
Expired / Lapsed
US
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Bedspring
Assignee: PERFECTION BED SPRING Co
•
Filing: 1947-03-10
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Granted: 1952-03-11
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Expires: 1967-03-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond K Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:41
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/04; A47C23/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1714227A
Cited
US1897402A
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US1938277A
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US1964296A
Cited
US2131071A
Cited
US2315543A
Cited
US2248023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |