US2709819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side reinforcement for inner spring mattresses
Assignee: Individual
•
Filing: 1952-04-10
•
Granted: 1955-06-07
•
Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Virgle V Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:23
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/04; A47C27/06; A47C27/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US171180A
Cited
US730779A
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US1597573A
Cited
US1651523A
Cited
US1893098A
Cited
US2029076A
Cited
US2211925A
Cited
FR1004707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |