US3056573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure actuated valve
Assignee: Rockwell Manufacturing Co
•
Filing: 1956-07-12
•
Granted: 1962-10-02
•
Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Edmund E Matheson
- 👤 Wolfensperger Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:06
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/065; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 0
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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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |