Patent US2761867A successfully refreshed from Google Patents.
US2761867A
Expired / Lapsed
US
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Aluminum salts of allantoin and their preparation and compositions comprising the same
Assignee: Schuylkill Chemical Co
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Filing: 1955-08-11
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Granted: 1956-09-04
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Expires: 1975-08-11
Abstract
No abstract record available.
Inventors
- 👤 Sebastian B Mecca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:09
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
AN ALUMINUM SALT OF ALLANTOIN.
Claim 2
Dependent Claim
5 words
AN ALUMINUM SALT OF ALLANTOIN.
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) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |