US2593825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductivity controlled dispenser
Assignee: Hall Labs LLC
•
Filing: 1948-09-29
•
Granted: 1952-04-22
•
Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Albrecht Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:12
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/0018; A47L15/0055; A47L15/42; A47L15/44; A47L15/449; G; G05; G05D; G05D21/00; G05D21/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2509; Y10T137/8593; Y10T137/86187; Y10T137/8622; Y10T137/86228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2004569A
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US1912997A
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US2176471A
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US2299529A
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US2221306A
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US2377363A
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US2393701A
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US2508973A
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US2456811A
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US2468678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |