US2827913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-tapping valve for tubes, pipes, tanks and other conduits and containers
Assignee: Individual
•
Filing: 1955-07-28
•
Granted: 1958-03-25
•
Expires: 1975-07-28
Abstract
No abstract record available.
Inventors
- 👤 Wagner William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US577462A
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US1347951A
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US1898935A
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US1938984A
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US2114583A
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US2237476A
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US2391583A
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US2608989A
Cited
US2660192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |