US3511499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski exerciser having rollable carriage
Assignee: AMF Inc
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Filing: 1968-08-19
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Granted: 1970-05-12
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Expires: 1988-08-19
Abstract
No abstract record available.
Inventors
- 👤 Albert Schawalder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:34
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/02; A63B21/055; A63B21/06; A63B21/068; A63B21/15; A63B21/151; A63B21/154; A63B69/00; A63B69/18; A63B71/00; A63B71/02; A63B71/023; A63B2071/025; A63B21/023; A63B21/04; A63B21/0407; A63B21/0428; A63B21/0552; A63B21/0557; A63B2208/00; A63B2208/02; A63B2208/0204
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |