US2716422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float valve
Assignee: Automatic Pump and Softener Corp
•
Filing: 1953-01-23
•
Granted: 1955-08-30
•
Expires: 1973-01-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert A Whitlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:55
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7303; Y10T137/7313; Y10T137/7323; Y10T137/7326; Y10T137/7358; Y10T137/7365; Y10T137/7423; Y10T137/7426; Y10T137/7436
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE70439C
Cited
US214463A
Cited
US576340A
Cited
US602525A
Cited
US748515A
Cited
GB190323943A
Cited
FR354739A
Cited
US1259791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |