US3438388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fully lined valve
Assignee: Flowserve Corp
•
Filing: 1965-10-19
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Granted: 1969-04-15
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Robert C Schenck Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:39
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; B; B29; B29C; B29C49/00; B29C49/24; B29C49/26; F16K27/00; F16K27/06; F16K27/062; F16K41/00; F16K41/10; F16K5/02; F16K5/025; F16K5/14; F16K5/16; F16K5/162; F16K5/163; B29K; B29K2027/00; B29K2027/12; B29K2027/18; B29L; B29L2031/00; B29L2031/748; B29L2031/7506; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA566811A
Cited
US1827266A
Cited
US1998882A
Cited
FR1044271A
Cited
US2792845A
Cited
US3015855A
Cited
US3235636A
Cited
US3329398A
Cited
US3235637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |