Patent US4201828A successfully refreshed from Google Patents.
Patent US3216396A successfully refreshed from Google Patents.
US3216396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pig farrowing house
Assignee: Individual
•
Filing: 1964-08-10
•
Granted: 1965-11-09
•
Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 William H Scamman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:15
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/02; A01K1/0218
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
A PIG FARROWING HOUSE OF RECTANGULAR SHAPE AND PLAN COMPRISING A VERTICAL FRONT AND REAR LONGITUDINAL WALLS AND RELATIVELY SPACED END WALLS, SAID FRONT WALL BEING PROVIDED WITH RELATIVELY LONGITUDINALLY SPACED OPENINGS, ENTRY AND EXIT DOORS HINGEDLY MOUNTED FOR INWARD AND OUTWARD OPENING MOVEMENT ONLY, RESPECTIVELY, IN THE RESPECTIVE OPENINGS, RESILIENT MEANS NORNALLY URGING SAID DOORS TOWARD CLOSED POSITION, A GENERALLY VERTICAL RIGID BARRIER IN THE SAID HOUSING BETWEEN AND GENERALLY PARALLEL TO SAID FRONT AND REAR WALLS, MEANS FOR SUPPORTING SAID BARRIER ABOVE THE FLOOR AT A LEVEL TO PERMIT MOVEMENT OF SMALL PIGS THEREBENEATH WHILE EXTENDING THE SOW, BROODER BOX MEANS LOCATED IN SAID HOUSE BETWEEN IN SAID ENTRY AND EXIT DOORS AND COOPERATING WITH SAID SOW BARRIER TO DEFINE A NARROW PASSAGE INTERCONNECTING SAID DOORS, AND BEING OF A WIDTH TO PERMIT UNRESTRICTED PASSAGE OF THE SOW
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |