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US3418975A
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Farrowing pig pen
Assignee: EVA L SMITH
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Filing: 1966-08-08
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Granted: 1968-12-31
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Eva L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:06
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/02; A01K1/0218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2740379A
Cited
US3028097A
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US2940423A
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US3011475A
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US3105462A
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US3237600A
Cited
US3283744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |