US3373992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle exerciser
Assignee: GILBERT K LUDEMAN
•
Filing: 1965-09-17
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Granted: 1968-03-19
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Gilbert K Ludeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:53
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/06; A63B22/0605; A63B2022/0611; A63B2022/0623; A63B21/00; A63B21/008; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2164; Y10T74/2168; Y10T74/217
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
IN A BICYCLE EXERCISER HAVING A FRAME WITH HANDLE BARS AND A SEAT MOUNTED THEREON AND FIRST AND SECOND ROTATABLE PEDALS CARRIED THEREBY, THE IMPROVED PEDAL IMPEDANCE MEANS COMPRISING: A LIQUID BATH MOUNTED BETWEEN SAID FIRST AND SECOND PEDALS; SAID FIRST AND SECOND PEDALS BEING OPERABLY CONNECTED TO AN AXLE, SAID AXLE PASSING THROUGH SAID LIQUID BATH; AND A PADDLE WHEEL CARRIED BY SAID AXLE AND POSITIONED WITHIN SAID LIQUID BATH.
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) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |