Patent US3489098A successfully refreshed from Google Patents.
US3489098A
Expired / Lapsed
US
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Reciprocating pump having an improved seal and method of manufacture therefor
Assignee: Halliburton Co
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Filing: 1968-03-18
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Granted: 1970-01-13
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Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 Morris Roth
- 👤 William K Maddox
- 👤 Don R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:21
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US824799A
Cited
US1787317A
Cited
US2853321A
Cited
US3281155A
Cited
US3276390A
Cited
US3416406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |