US3425397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal litter preparation
Assignee: Alfa Pet Inc
•
Filing: 1967-01-13
•
Granted: 1969-02-04
•
Expires: 1987-01-13
Abstract
No abstract record available.
Inventors
- 👤 Benjamin M Schulein
- 👤 Benjamin M Schulein Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:38
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/015; A01K1/0152; A01K1/0155; A01K1/0154
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179591A
Cited
US2424330A
Cited
US2708418A
Cited
US2848976A
Cited
US3029783A
Cited
US3059615A
Cited
GB878423A
Cited
US3286691A
Cited
US3256857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |