US2993677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve construction
Assignee: Ford Meter Box Co Inc
•
Filing: 1958-03-21
•
Granted: 1961-07-25
•
Expires: 1978-03-21
Abstract
No abstract record available.
Inventors
- 👤 John L Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:47
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/06; F16K27/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US862826A
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US1430361A
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US1801376A
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US1818255A
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US1959314A
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US2332354A
Cited
US2332355A
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US2430657A
Cited
US2555483A
Cited
US2529534A
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US2824756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |