US3522953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exercising apparatus
Assignee: Dynamic Conversion Inc
•
Filing: 1968-10-29
•
Granted: 1970-08-04
•
Expires: 1988-10-29
Abstract
No abstract record available.
Inventors
- 👤 Louis Gold
- 👤 George J Yevick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:03
CPC Classifications
B; B62; B62B; B62B13/00; B62B13/18; B62K; B62K3/00; B62K3/002
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1418569A
Cited
US2027254A
Cited
US2418038A
Cited
GB616723A
Cited
US2978243A
Cited
US3063714A
Cited
FR1360732A
Cited
US3292924A
Cited
US3433500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |