US3003374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic roll pressure control system
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1956-05-17
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Granted: 1961-10-10
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Expires: 1976-05-17
Abstract
No abstract record available.
Inventors
- 👤 Smith Arthur Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:54
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/16; B21B31/20; B21B31/32; F; F15; F15B; F15B11/00; F15B11/02; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/20576; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/50545; F15B2211/515; F15B2211/5159; F15B2211/52; F15B2211/521; F15B2211/523; F15B2211/528; F15B2211/55; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7766
Claims Analysis
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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) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |