US2498189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control and distribution of fluids
Assignee: Individual
•
Filing: 1946-12-12
•
Granted: 1950-02-21
•
Expires: 1966-12-12
Abstract
No abstract record available.
Inventors
- 👤 John H Wattson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:40
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/16; A01G25/162; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86421; Y10T137/87096; Y10T137/87917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US675946A
Cited
US1005117A
Cited
US1825443A
Cited
US1739787A
Cited
US2102076A
Cited
US2335923A
Cited
US2417994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |