US2998929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water aerators
Assignee: Individual
•
Filing: 1957-02-18
•
Granted: 1961-09-05
•
Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Elie P Aghnides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:47
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/08; E03C1/084; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/234; B01F23/2341; B01F23/23412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1912113A
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US2564060A
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US2643104A
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US2707624A
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US2738798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |