Patent US3332841A successfully refreshed from Google Patents.
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
•
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 20:19
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.
References Cited (Backward Citations)
US3115490A
Cited
CA567738A
Cited
GB461354A
Cited
GB466270A
Cited
GB466344A
Cited
GB488553A
Cited
US2257162A
Cited
US2626931A
Cited
US2554072A
Cited
US2597439A
Cited
US2774710A
Cited
US2901443A
Cited
GB834883A
Cited
US2868693A
Cited
US2934472A
Cited
US3224940A
Cited
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 |