Patent US3429328A successfully refreshed from Google Patents.
US3429328A
Expired / Lapsed
US
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Hydraulic controls
Assignee: Caterpillar Inc
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Filing: 1965-04-08
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Granted: 1969-02-25
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Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Hugh C Morris
- 👤 Shairyl I Pearce
- 👤 Charles A Ramsel
- 👤 Gerald D Rohweder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:00
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/08; B; B62; B62D; B62D11/00; B62D11/02; B62D11/06; B62D11/10; B62D11/14; B62D11/18; B62D11/183; Y; Y10; Y10S; Y10S74/00; Y10S74/02; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2663; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/8593; Y10T137/87169
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB493553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |