US3040772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic reset relief valve
Assignee: FMC Corp
•
Filing: 1959-12-28
•
Granted: 1962-06-26
•
Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 William L Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:01
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/10; E; E21; E21B; E21B21/00; E21B21/10; E21B21/106; F16K17/042; F16K25/00; F16K25/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/8593; Y10T137/86485
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1034882A
Cited
US2030143A
Cited
US2477247A
Cited
US2471605A
Cited
US2925092A
Cited
US2891570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |