US2886834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-inflating mattress
Assignee: Individual
•
Filing: 1957-05-24
•
Granted: 1959-05-19
•
Expires: 1977-05-24
Abstract
No abstract record available.
Inventors
- 👤 Stanley F Gilbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:41
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1282980A
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US1640618A
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US1663268A
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US1681130A
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US1673636A
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DE522691C
Cited
US2068134A
Cited
US2028060A
Cited
US2372218A
Cited
GB657558A
Cited
BE494496A
Cited
US2682670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |