US2887094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water supply actuated medicinal additive proportioning device
Assignee: Individual
•
Filing: 1957-07-05
•
Granted: 1959-05-19
•
Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 John E Krukemeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:36
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/132; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US464361A
Cited
US1137861A
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US1870897A
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US2135011A
Cited
US2203832A
Cited
US2366523A
Cited
US2497348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |