Patent US2808069A successfully refreshed from Google Patents.
US2808069A
Expired / Lapsed
US
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Cut-off and drain units for plumbing systems
Assignee: Individual
•
Filing: 1955-07-19
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Granted: 1957-10-01
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Expires: 1975-07-19
Abstract
No abstract record available.
Inventors
- 👤 Philip C Mccurdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:19
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/34; Y; Y10; Y10T; Y10T137/00; Y10T137/402; Y10T137/5327; Y10T137/5497; Y10T137/5503; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/698
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |