US2990019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Litter cleaning apparatus
Assignee: Finn Equipment Co
•
Filing: 1958-08-22
•
Granted: 1961-06-27
•
Expires: 1978-08-22
Abstract
No abstract record available.
Inventors
- 👤 Charles O Finn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:45
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0863; E01H12/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1033164A
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US1211902A
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US2493023A
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US2661493A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |