Patent US836245A successfully refreshed from Google Patents.
Patent US2454964A successfully refreshed from Google Patents.
US2454964A
Expired / Lapsed
US
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Bed spring
Assignee: Moore Co
•
Filing: 1944-07-20
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Granted: 1948-11-30
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Expires: 1964-07-20
Abstract
No abstract record available.
Inventors
- 👤 Charles J Elder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:14
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE256358C
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DE132558C
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US136507A
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US364233A
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US536123A
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US1270238A
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US1486574A
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US1964296A
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US2115400A
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US2211925A
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US2226165A
Cited
US2242731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |