US2847993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for the preventative vaccination of chickens
Assignee: Individual
•
Filing: 1952-05-21
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Granted: 1958-08-19
•
Expires: 1972-05-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:47
CPC Classifications
A; A61; A61D; A61D1/00; A61D1/02; A61D1/025; A61M; A61M11/00; A61M11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |