Patent US2630587A successfully refreshed from Google Patents.
US2630587A
Expired / Lapsed
US
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Combination sheet and mattress
Assignee: Individual
•
Filing: 1950-08-03
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Granted: 1953-03-10
•
Expires: 1970-08-03
Abstract
No abstract record available.
Inventors
- 👤 Peter B Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:19
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/02; A47C21/022; A47C31/00; A47C31/10; A47C31/105; A47G; A47G9/00; A47G9/02; A47G9/0238; A47G9/0246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US364797A
Cited
US1011225A
Cited
US1035222A
Cited
US1261314A
Cited
US1596209A
Cited
US1928943A
Cited
US1986896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |