US3594469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pellets for supplying biologically active substances to ruminants containing magnesium and iron
Assignee: Pfizer Inc
•
Filing: 1965-11-23
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Granted: 1971-07-20
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Expires: 1985-11-23
Abstract
Abstract PELLETS FOR ADMINISTRATION TO RUMINANTS FOR SUPPLYING THE ANIMALS OVER AN EXTENDED PERIOD OF TIME WITH BIOLOGICALLY ACTIVE SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND MAGNESIUM BASE ALLOYS, TOGETHER WITH PARTICLES OF A METALLIC SUBSTANCE NON-HARMFUL TO RUMINANTS AND OF A HIGHER SPECIFIC GRAVITY THAN THAT OF SAID BIOLOGICALLY ACTIVE SUBSTANCE, SAID BIOLOGICALLY ACTIVE SUBSTANCE AND SAID PARTICLES BEING IN SUCH PROPORTIONS THAT THE PELLET HAS A SPECIFIC GRAVITY OF AT LEAST 2.2.
Inventors
- 👤 Derek James Whitehead
- 👤 Peter Darien Demaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0053; A61K9/0068; A23; A23K; A23K20/00; A23K20/20; A23K20/24; A23K40/00; A23K40/30; A23K40/35; A61J; A61J3/00; A61J3/06; A61K9/02
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |