US2940857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of silage
Assignee: Purdue Research Foundation
•
Filing: 1958-12-19
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Granted: 1960-06-14
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Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Fred N Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:36
CPC Classifications
A; A23; A23K; A23K30/00; A23K30/10; A23K30/15; Y; Y10; Y10S; Y10S426/00; Y10S426/807
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
IN A PROCESS FOR THE PRESERVATION OF SILAGE, THE STEP WHICH COMPRISES UNIFORMLY INCORPORATING IN SILAGE PRIOR TO STORAGE ZINC BACITRACIN IN AMOUNTS RANGING FROM 1 TO 50 GRAMS/TON OF SILAGE.
Claim 2
Dependent Claim
31 words
IN A PROCESS FOR THE PRESERVATION OF SILAGE, THE STEP WHICH COMPRISES UNIFORMLY INCORPORATING IN SILAGE PRIOR TO STORAGE ZINC BACITRACIN IN AMOUNTS RANGING FROM 1 TO 50 GRAMS/TON OF SILAGE.
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |