US3332841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating hyperacidity
Assignee: Eli Lilly and Co
•
Filing: 1961-10-04
•
Granted: 1967-07-25
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Expires: 1981-10-04
Abstract
No abstract record available.
Inventors
- 👤 Ainsworth Cameron
- 👤 Ralph R Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:36
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/02; A; A61; A61K; A61K31/00; A61K31/74; A61K31/785
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD OF TREATING HYPERACIDITY WHICH COMPRISES ORALLY ADMINISTERING TO A SUBJECT SUFFERING FROM HYPERACIDITY BETWEEN ABOUT 0.25 AND ABOUT 5 G. OF A COMPOSITION CONSISTING ESSENTIALLY OF A NONTOXIC, WATER-INSOLUBLE, SOLID, CROSS-LINKED POLYALKYLENEIMINE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENEIMINE AND POLYPROPYLENEIMINE, THE CROSS-LINKS THEREIN HAVING 2 TO 10 CARBON ATOMS, HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 20 AND ABOUT 200, AND BEING ATTACHED AT EACH END TO POLYALKYLENEIMINE NITROGEN ATOMS.
Claim 2
Independent Claim
73 words
A METHOD OF TREATING HYPERACIDITY WHICH COMPRISES ORALLY ADMINISTERING TO A SUBJECT SUFFERING FROM HYPERACIDITY BETWEEN ABOUT 0.25 AND ABOUT 5 G. OF A COMPOSITION CONSISTING ESSENTIALLY OF A NONTOXIC, WATER-INSOLUBLE, SOLID, CROSS-LINKED POLYALKYLENEIMINE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENEIMINE AND POLYPROPYLENEIMINE, THE CROSS-LINKS THEREIN HAVING 2 TO 10 CARBON ATOMS, HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 20 AND ABOUT 200, AND BEING ATTACHED AT EACH END TO POLYALKYLENEIMINE NITROGEN ATOMS.
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |