US3529474A
Expired / Lapsed
US
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Cardiac exerciser
Assignee: ALBERT M OLSON
•
Filing: 1968-12-05
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Granted: 1970-09-22
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Expires: 1988-12-05
Abstract
No abstract record available.
Inventors
- 👤 Albert M Olson
- 👤 Everett H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/008; A63B21/0083; A61; A61B; A61B5/00; A61B5/22; A61B5/221; A61B5/222; A61B5/24; A61B5/316; A61B5/318; A61B5/329; A63B22/00; A63B22/20; A63B22/201; A63B22/205; A63B69/00; A63B69/0057; A63B71/00; A63B71/06; A63B71/0619; A63B71/0622; A63B2071/0625; A63B2071/0633; A63B2208/00; A63B2208/02; A63B2208/0204; A63B2220/00; A63B2220/50; A63B2220/56; A63B2230/00; A63B2230/04; A63B2230/75
Claims Analysis
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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) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |