Patent US2687550A successfully refreshed from Google Patents.
US2687550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for stunning poultry
Assignee: Individual
•
Filing: 1952-01-25
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Granted: 1954-08-31
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Expires: 1972-01-25
Abstract
No abstract record available.
Inventors
- 👤 Reginald L Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:32
CPC Classifications
A; A22; A22B; A22B3/00; A22B3/06; A22B3/08; A22B3/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1580790A
Cited
US1970294A
Cited
US2210376A
Cited
US2245880A
Cited
US2512089A
Cited
US2536220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |