Patent US2539253A successfully refreshed from Google Patents.
US2539253A
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US
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Litter stirring and lime admixing apparatus
Assignee: Individual
•
Filing: 1949-07-13
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Granted: 1951-01-23
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Expires: 1969-07-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Jorgensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:13
CPC Classifications
A; A01; A01C; A01C3/00; A01K; A01K1/00; A01K1/015; A01K1/0156; A01K31/00; A01K31/04; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |