US2663308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary solution control apparatus
Assignee: Apherma Corp
•
Filing: 1950-01-25
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Granted: 1953-12-22
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Expires: 1970-01-25
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Hodgens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:05
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4418; A47L15/0018; A47L15/0055; A47L15/449; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2509
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1222123A
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US1576001A
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US1930500A
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US2006191A
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US2191019A
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US2302326A
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US2404548A
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US2500042A
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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) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |