US2542477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined inflated support and utility bag
Assignee: Individual
•
Filing: 1948-07-30
•
Granted: 1951-02-20
•
Expires: 1968-07-30
Abstract
No abstract record available.
Inventors
- 👤 Cart Cecil Denver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:08
CPC Classifications
A; A45; A45C; A45C9/00; A61; A61F; A61F17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234606A
Cited
US303859A
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US731314A
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FR325233A
Cited
US1271154A
Cited
US1468816A
Cited
US1864648A
Cited
US1927471A
Cited
US2016520A
Cited
US2067851A
Cited
US2422511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |