US1582225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for impregnating flowing water
Assignee: Individual
•
Filing: 1925-07-13
•
Granted: 1926-04-27
•
Expires: 1945-07-13
Abstract
No abstract record available.
Inventors
- 👤 Pulkinghorn William Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:38
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/046; Y; Y10; Y10T; Y10T137/00; Y10T137/4891; Y10T137/794; Y10T137/8122; Y10T137/8593; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-04-26 | 1929-10-26 | 1930-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-04-26 | 1933-10-26 | 1934-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-04-26 | 1937-10-26 | 1938-04-27 | $7700.00 | Window Closed / Lapsed |