US3138289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for terminating the flow of metered materials
Assignee: Individual
•
Filing: 1961-01-25
•
Granted: 1964-06-23
•
Expires: 1981-01-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold D Jones
- 👤 Edwin R Sturdivant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:26
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B65; B65B; B65B51/00; B65B51/04; B65B51/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2643792A
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US2784874A
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US2895021A
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US2855478A
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US2936096A
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US2916566A
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US3040139A
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US3011033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |