US3576758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of polypeptide-containing hydrophilic polymeric capsule wall material with uranium and vanadium compounds
Assignee: NCR Voyix Corp
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Filing: 1966-10-17
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Granted: 1971-04-27
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Expires: 1986-10-17
Abstract
Abstract A PROCESS IS PROVIDED FOR MANUFACTUREING NOVEL, MINUTE, CAPSULES EN MASSE WHEREIN PREFORMED CAPSULES HAVING WALLS OF POLYPEPTIDE-CONTAINING HYDROPHILIC POLYMERIC MATERIAL ARE FURTHER TREATED BY URANYL OR VANADYL IONS IN AN AQUEOUS LIQUID VEHICLE. CAPSULES PRODUCED BY PRACTICE OF THIS PROCESS HAVE WALLS WHICH EXHIBIT DECREASED WATER SOLUBILITY, DECREASED SWELLING IN WATER, AND DECREASED SENSITIVITY TO HIGH RELATIVE HUMIDITY.
Inventors
- 👤 Donald D Emrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/20; B01J13/206; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2989
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |