Patent US2918681A successfully refreshed from Google Patents.
US2918681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient transfer device
Assignee: Individual
•
Filing: 1953-06-30
•
Granted: 1959-12-29
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Fenimore E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:31
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1025; A61G7/1032; A61G2200/00; A61G2200/30; A61G2200/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US378220A
Cited
US849449A
Cited
US809048A
Cited
US845966A
Cited
US1068345A
Cited
US2192821A
Cited
GB527670A
Cited
US2630583A
Cited
US2735727A
Cited
US2714011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |