Patent US2713409A successfully refreshed from Google Patents.
US2713409A
Expired / Lapsed
US
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Air valve comestible sorting apparatus
Assignee: Big Heart Pet Brands LLC
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Filing: 1951-06-22
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Granted: 1955-07-19
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Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 Harold W Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:11
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/46; F16K31/00; F16K31/12; F16K31/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US184279A
Cited
US313313A
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US1392952A
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US1596968A
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US1680245A
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US2146572A
Cited
US2168419A
Cited
US2377123A
Cited
US2524951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |