US3436769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hospital bed with friction drive
Assignee: Hill Rom Co Inc
•
Filing: 1967-11-24
•
Granted: 1969-04-08
•
Expires: 1987-11-24
Abstract
No abstract record available.
Inventors
- 👤 Francis J Burst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:01
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3216026A
Cited
US3278952A
Cited
US3211014A
Cited
US3256534A
Cited
US3237212A
Cited
US3375740A
Cited
US3345107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |