US2779949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic lift for bath tubs
Assignee: Individual
•
Filing: 1952-06-27
•
Granted: 1957-02-05
•
Expires: 1972-06-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Crispen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:54
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1001; A61G7/1003; A61G7/1013; A61G7/1019; A61G7/1049; A61G7/1059; A61G7/1073; A61G7/1076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US245544A
Cited
US1268816A
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US1552326A
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US1950030A
Cited
US1982245A
Cited
US2087286A
Cited
US2563912A
Cited
US2582586A
Cited
US2679890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |