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Patent US2408306A successfully refreshed from Google Patents.
US2408306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerator
Assignee: Individual
•
Filing: 1944-04-29
•
Granted: 1946-09-24
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Expires: 1964-04-29
Abstract
No abstract record available.
Inventors
- 👤 Algernon F Flournoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:33
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/042; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23123; B01F23/236; B01F23/23126; B01F23/231265; B01F33/00; B01F33/50; B01F33/501; B01F33/5011
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) | 1949-09-23 | 1950-03-25 | 1950-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-09-23 | 1954-03-25 | 1954-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-09-23 | 1958-03-25 | 1958-09-24 | $7700.00 | Window Closed / Lapsed |