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US2863648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure closure
Assignee: American Radiator and Standard Sanitary Corp
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Filing: 1955-12-02
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Granted: 1958-12-09
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Expires: 1975-12-02
Abstract
No abstract record available.
Inventors
- 👤 Tinker Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02; F23; F23M; F23M7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |