Patent EP0405236A1 successfully refreshed from Google Patents.
US2940089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress structure
Assignee: Englander Co Inc
•
Filing: 1956-12-24
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Granted: 1960-06-14
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Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Koenigsberg Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:33
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1859340A
Cited
GB334870A
Cited
GB336236A
Cited
US2305430A
Cited
US2509831A
Cited
GB678562A
Cited
US2826769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |