US2869638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic feeder for vertebrata
Assignee: Individual
•
Filing: 1956-04-02
•
Granted: 1959-01-20
•
Expires: 1976-04-02
Abstract
No abstract record available.
Inventors
- 👤 Donald L Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:25
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/02; A01K5/0291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US742969A
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US735167A
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US1143634A
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US1025723A
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US1214881A
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US2353481A
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US2538413A
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US2700489A
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US2793791A
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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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |