US3424022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic gearing
Assignee: Acme Precision Products Inc
•
Filing: 1967-01-23
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Granted: 1969-01-28
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Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 Myron L Greenberg
- 👤 Gordon H Porath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:09
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/042; F16H57/043; F16H57/0431; F16H57/048; F16H57/0493; F16H57/0495; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623; Y10T74/19628; Y10T74/19991; Y10T74/19995
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |