US3127436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adducts of hexamethylbiguanide and method for preparing same
Assignee: Wyeth Holdings LLC
•
Filing: 1962-05-28
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Granted: 1964-03-31
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Flynn
- 👤 Frederic C Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
C; C07; C07C; C07C279/00; C07C279/20; C07C279/24; C07C279/26; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/1858
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
THE COMPOUND:
Claim 2
Dependent Claim
2 words
THE COMPOUND:
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) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |