US3528653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rowing machine and brake unit therefor
Assignee: Nissen Corp
•
Filing: 1967-10-13
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Granted: 1970-09-15
•
Expires: 1987-10-13
Abstract
No abstract record available.
Inventors
- 👤 Emil C Stuckenschneider
- 👤 Donald J Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/0076; A63B21/00; A63B21/012; A63B21/015; A63B2022/0082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |