US2767732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float control device
Assignee: Infilco Inc
•
Filing: 1955-02-03
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Granted: 1956-10-23
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Expires: 1975-02-03
Abstract
No abstract record available.
Inventors
- 👤 Austin B Hodgson
- 👤 Robert J Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:35
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/02; F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/731; Y10T137/7358; Y10T137/7413; Y10T137/742
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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |