US3131068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble coated edible organic acids
Assignee: Wyeth Holdings LLC
•
Filing: 1961-07-24
•
Granted: 1964-04-28
•
Expires: 1981-07-24
Abstract
No abstract record available.
Inventors
- 👤 Greif Martin
- 👤 Weidenheimer Joseph Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:02
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/30; A; A23; A23L; A23L2/00; A23L2/52; A23L2/68; A23P; A23P10/00; A23P10/30; B01J2/006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2121397A
Cited
US2111342A
Cited
FR1023284A
Cited
US2984572A
Cited
DE1051848B
Cited
US2887440A
Cited
US2949402A
Cited
US2956926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |