US3118466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure operated by-pass valve for pumping apparatus
Assignee: Texas Pipe Line Co
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Filing: 1961-01-31
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Granted: 1964-01-21
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Expires: 1981-01-31
Abstract
No abstract record available.
Inventors
- 👤 Marshall U Bagwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/363; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7766; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/7809; Y10T137/781; Y10T137/7811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US673732A
Cited
US894102A
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US934081A
Cited
US1814530A
Cited
US2918081A
Cited
US2955614A
Cited
US2839077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |