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US2661833A
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Article inverting feeding bowls
Assignee: Syntron Co
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Filing: 1951-03-19
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Granted: 1953-12-08
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Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 William V Spurlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:17
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1414; B65G47/1421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB279119A
Cited
US2346549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |