Patent US2649759A successfully refreshed from Google Patents.
US2649759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treated clay animal litter
Assignee: Individual
•
Filing: 1950-10-05
•
Granted: 1953-08-25
•
Expires: 1970-10-05
Abstract
No abstract record available.
Inventors
- 👤 S E Gibbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:42
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/015; A01K1/0152; A01K1/0154
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A POULTRY AND SMALL ANIMAL LITTER COMPOSED OF CLAY OF THE FOLLOWING FORMULA: SIO2 67.5%, MGO 11%, AL2O3 12%, CAO 2.5%, FE2O3 3.5% AND OTHER 3.25%, HEATED TO AT LEAST 1600* F. AND BROKEN INTO PIECES LESS THAN ONE INCH IN DIAMETER.
Claim 2
Dependent Claim
42 words
A POULTRY AND SMALL ANIMAL LITTER COMPOSED OF CLAY OF THE FOLLOWING FORMULA: SIO2 67.5%, MGO 11%, AL2O3 12%, CAO 2.5%, FE2O3 3.5% AND OTHER 3.25%, HEATED TO AT LEAST 1600* F. AND BROKEN INTO PIECES LESS THAN ONE INCH IN DIAMETER.
References Cited (Backward Citations)
US2351686A
Cited
US1967333A
Cited
US2014900A
Cited
US2279405A
Cited
US2376672A
Cited
US2477892A
Cited
US2470346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |