US2963715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contour sheet for mattresses
Assignee: Individual
•
Filing: 1959-01-02
•
Granted: 1960-12-13
•
Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Young Nat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:47
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/02; A47G9/0238; A47G9/0246; A47C; A47C27/00; A47C27/002; A47C27/005; A47C31/00; A47C31/10; A47C31/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1916640A
Cited
US2191956A
Cited
US2569627A
Cited
US2779035A
Cited
US2639444A
Cited
US2586153A
Cited
US2778412A
Cited
US2856615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |