US2449573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for fluid supply lines
Assignee: Individual
•
Filing: 1943-08-31
•
Granted: 1948-09-21
•
Expires: 1963-08-31
Abstract
No abstract record available.
Inventors
- 👤 White William Sears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:52
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/108; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F16K15/148; F16K15/16; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/3294; Y10T137/3331; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7843; Y10T137/7879; Y10T137/7888; Y10T137/789; Y10T137/7891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US103738A
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US314107A
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US2033935A
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US2021342A
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US2199307A
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US2292003A
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US2277295A
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US2328382A
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US2347199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |