US2487730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back exercising and massaging device
Assignee: Individual
•
Filing: 1947-12-12
•
Granted: 1949-11-08
•
Expires: 1967-12-12
Abstract
No abstract record available.
Inventors
- 👤 Robert J Robb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:09
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/008; A61H2203/00; A61H2203/04; A61H2203/0406; A61H2205/00; A61H2205/08; A61H2205/081
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US195247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |