Patent US4224442A successfully refreshed from Google Patents.
US2688976A
Expired / Lapsed
US
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Nonfreezing hydrant
Assignee: J A ZURN Manufacturing Co
•
Filing: 1951-01-15
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Granted: 1954-09-14
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Expires: 1971-01-15
Abstract
No abstract record available.
Inventors
- 👤 Albert A Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:27
CPC Classifications
E; E03; E03B; E03B7/00; E03B7/09; E03B7/10; Y; Y10; Y10T; Y10T137/00; Y10T137/5327; Y10T137/5392; Y10T137/5397; Y10T137/5497
Claims Analysis
Total Claims: 0
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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) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |