US2642675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling fluids
Assignee: AT&T Inc
•
Filing: 1950-09-30
•
Granted: 1953-06-23
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Expires: 1970-09-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Edgar W Hertenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:55
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/30; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/3024; Y10T137/3102; Y10T137/3105; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2508132A
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US774025A
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US1025121A
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US2019896A
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US2483450A
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US2512897A
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US2598361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |