US2859455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mattress structure
Assignee: Englander Co Inc
•
Filing: 1955-09-30
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Granted: 1958-11-11
•
Expires: 1975-09-30
Abstract
No abstract record available.
Inventors
- 👤 Koenigsberg Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/15; A47C27/142; A47C27/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE511193C
Cited
FR767841A
Cited
US1295030A
Cited
GB333389A
Cited
US2222782A
Cited
US2271842A
Cited
US2358962A
Cited
US2659418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |