US3470570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible diver's weight belt
Assignee: SPORTS IND Inc
•
Filing: 1967-02-03
•
Granted: 1969-10-07
•
Expires: 1987-02-03
Abstract
No abstract record available.
Inventors
- 👤 James S Christiansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:05
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/30; A; A41; A41F; A41F9/00; A41F9/002; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3916; Y10T24/3929
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US885933A
Cited
US2220593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |