Patent US3325644A successfully refreshed from Google Patents.
US3033198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cervical traction device
Assignee: Individual
•
Filing: 1957-10-08
•
Granted: 1962-05-08
•
Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 Jensen Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:10
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0218; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1604; A61H2201/1607
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1783080A
Cited
US2633125A
Cited
US2665685A
Cited
US2803245A
Cited
US2910061A
Cited
US2740399A
Cited
US2796061A
Cited
US2773499A
Cited
US2811965A
Cited
US2813527A
Cited
US2837085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |