US2769182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable mattress lifters
Assignee: Individual
•
Filing: 1954-04-21
•
Granted: 1956-11-06
•
Expires: 1974-04-21
Abstract
No abstract record available.
Inventors
- 👤 Erwin J Nunlist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:10
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1013; A61G7/1021; A47; A47C; A47C20/00; A47C20/04; A47C20/048; A61G2200/00; A61G2200/30; A61G2200/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US484974A
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GB190407105A
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US844362A
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US1151894A
Cited
US1171712A
Cited
US1356613A
Cited
GB192751A
Cited
US1639462A
Cited
US1772310A
Cited
US1981666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |