US3573082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biological specimens and process of preserving same
Assignee: Nasco Ind Inc
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Filing: 1968-04-16
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Granted: 1971-03-30
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Expires: 1988-04-16
Abstract
Abstract THE PROCESS OF PRESERVING ANIMAL AND PLANT SPECIMENS INVOLVING THE USE OF GLYCOL AND A BIOLOGICAL SPECIMEN IMPREGNATED WITH A FIXATIVE AND AN ALKYLENE GLYCOL AQUEOUS COMPOSITION.
Inventors
- 👤 Calvin R Fremling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/02; B60C9/12; A; A01; A01N; A01N1/00; B60C15/00; B60C15/06
Claims Analysis
Total Claims: 0
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |