Patent US2887129A successfully refreshed from Google Patents.
US2887129A
Expired / Lapsed
US
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Liquid metering device
Assignee: Raytheon Co
•
Filing: 1956-01-10
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Granted: 1959-05-19
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Expires: 1976-01-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin B Stear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:27
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/03; G05D16/00; G05D16/04; G05D16/06; G05D16/0611; G05D16/0613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US677893A
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US1140420A
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US1671463A
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US2006865A
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US2576610A
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US2635641A
Cited
GB669448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |