US2975434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hospital patient lift attachment
Assignee: Individual
•
Filing: 1958-06-30
•
Granted: 1961-03-21
•
Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Butler
- 👤 Jule T Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:13
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1013; A61G7/1017; A61G7/104; A61G7/1046; A61G7/1049; A61G7/1055; A61G2200/00; A61G2200/30; A61G2200/32; A61G7/1073; A61G7/1076
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US245502A
Cited
GB190207721A
Cited
US935170A
Cited
US977243A
Cited
US1385424A
Cited
FR775907A
Cited
FR809840A
Cited
US2620198A
Cited
BE511977A
Cited
US2829917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |