Patent US2664913A successfully refreshed from Google Patents.
US2664913A
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US
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Nonsiphoning ball cock
Assignee: Individual
•
Filing: 1949-06-30
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Granted: 1954-01-05
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Expires: 1969-06-30
Abstract
No abstract record available.
Inventors
- 👤 Wilbert H Patten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:13
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/108; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7465
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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |