Patent US1664046A successfully refreshed from Google Patents.
US1664046A
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Apparatus for regulating the admixture of a solution to running water
Assignee: Individual
•
Filing: 1927-03-14
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Granted: 1928-03-27
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Expires: 1947-03-14
Abstract
No abstract record available.
Inventors
- 👤 Rosenberg Ida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:56
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/046
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) | 1931-03-27 | 1931-09-26 | 1932-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-27 | 1935-09-26 | 1936-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-27 | 1939-09-26 | 1940-03-27 | $7700.00 | Window Closed / Lapsed |