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US2927716A
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US
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Fluid proportioning and dispensing apparatus
Assignee: Symington Wayne Corp
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Filing: 1957-05-15
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Granted: 1960-03-08
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Expires: 1977-05-15
Abstract
No abstract record available.
Inventors
- 👤 Freedom H Ainsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:59
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/74; B67D7/741; B67D7/742
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2743843A
Cited
US2065128A
Cited
US1985918A
Cited
US2057226A
Cited
US2151239A
Cited
US2504013A
Cited
US2848139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |