Patent US3172392A successfully refreshed from Google Patents.
US3172392A
Expired / Lapsed
US
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Hog farrowing house
Assignee: Individual
•
Filing: 1962-11-30
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Granted: 1965-03-09
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred W Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:04
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/02; A01K1/0218; A01K1/0035; A01K1/0041
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
A FARROWING HOUSE COMPRISING AN ENCLOSURE INCLUDING AN PERIPHERAL WALL, AND A PLURALITY OF INWARDLY PROJECTING RIBS ON SAID WALL AT SPACED POINTS ABOUT THE INNER SURFACE THEREOF, SAID RIBS PROJECTING INWARDLY A DISTANCE SO AS TO PROVIDE SPACES BETWEEN THE INNER EDGES THEREOF AND THE WALLS SUFFICIENT FOR THE SAFE ACCOMMODATION OF NEWLY FARROWED ANIMALS, AND PASSAGEWAYS BENEATH SAID RIBS SO AS TO ALLOW THE PASSAGE OF THE ANIMALS BETWEEN SAID SPACES.
References Cited (Backward Citations)
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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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |