Patent US3228376A successfully refreshed from Google Patents.
US3228376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stall trench and grate combination
Assignee: Black Sivalls and Bryson Inc
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Filing: 1964-09-14
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Granted: 1966-01-11
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 William J Conover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:07
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/015; A01K1/0151
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
APPARATUS FOR THE DISPOSING OF ANIMAL OFFAL FROM THE SURFACE OF A FLOOR COMPRISING IN COMBIANTION: AN ANNULAR TRENCH FORMED IN THE FLOOR AND HAVING ACURATE INNER AND OUTER EDGES AT THE SURFACE OF THE FLOOR WHICH ARE RADIALLY SPACED AND CONCENTRIC RELATIVE TO EACH OTHER; AND GRATE MEANS COVERING SAID TRENCH AND INCLUDING A PLURALITY OF ARCUATELY SPACED SLABS LAID ON THE SURFACE AND EXTENDING RADIALLY OVER SAID TRENCH, EACH OF SAID SLABS PROGRESSIVELY NARROWER IN WIDTH FROM THE RADIALLY OUTERMOST END TO THE INNERMOST END THEREOF.
Claim 2
Dependent Claim
88 words
APPARATUS FOR THE DISPOSING OF ANIMAL OFFAL FROM THE SURFACE OF A FLOOR COMPRISING IN COMBIANTION: AN ANNULAR TRENCH FORMED IN THE FLOOR AND HAVING ACURATE INNER AND OUTER EDGES AT THE SURFACE OF THE FLOOR WHICH ARE RADIALLY SPACED AND CONCENTRIC RELATIVE TO EACH OTHER; AND GRATE MEANS COVERING SAID TRENCH AND INCLUDING A PLURALITY OF ARCUATELY SPACED SLABS LAID ON THE SURFACE AND EXTENDING RADIALLY OVER SAID TRENCH, EACH OF SAID SLABS PROGRESSIVELY NARROWER IN WIDTH FROM THE RADIALLY OUTERMOST END TO THE INNERMOST END THEREOF.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |