Patent US2832366A successfully refreshed from Google Patents.
US2832366A
Expired / Lapsed
US
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Chemical feeder
Assignee: BOIS CO Inc DU
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Filing: 1955-10-07
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Granted: 1958-04-29
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Expires: 1975-10-07
Abstract
No abstract record available.
Inventors
- 👤 Robert E Farison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:39
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4418; A47L15/4427; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/2842; Y10T137/2911; Y10T137/2931; Y10T137/3112; Y10T137/6851; Y10T137/7039; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/8158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |