US3430650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief valve
Assignee: Hercules LLC
•
Filing: 1966-02-18
•
Granted: 1969-03-04
•
Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Gilbert E Cain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:30
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; F16K27/0209; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1765272A
Cited
US2595671A
Cited
US2773720A
Cited
US2953345A
Cited
US3103341A
Cited
US3211422A
Cited
US3219054A
Cited
US3290003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |