Patent US2655932A successfully refreshed from Google Patents.
US2655932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain valve
Assignee: —
•
Filing: —
•
Granted: 1953-10-20
•
Expires: 1970-10-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:42
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F16; F16K; F16K3/00; F16K3/02; F16K3/16; F16K3/18; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6906; Y10T137/7036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1463735A
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US1586418A
Cited
US1611666A
Cited
US1737123A
Cited
US1665934A
Cited
US1776877A
Cited
US1793850A
Cited
US1954986A
Cited
US2195213A
Cited
US2231630A
Cited
US2417342A
Cited
US2487073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |