US2772867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerator
Assignee: Individual
•
Filing: 1953-02-11
•
Granted: 1956-12-04
•
Expires: 1973-02-11
Abstract
No abstract record available.
Inventors
- 👤 Howard R Cleckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:29
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE364155C
Cited
US1199380A
Cited
US2241337A
Cited
US2413102A
Cited
US2465866A
Cited
US2645116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |