US2730554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Germicidal diphenyl methane compounds
Assignee: Novartis AG
•
Filing: 1952-12-23
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Granted: 1956-01-10
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Expires: 1972-12-23
Abstract
No abstract record available.
Inventors
- 👤 Schetty Guido
- 👤 Stammbach Walter
- 👤 Model Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:28
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/24; C07C39/367
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A 2.2''-DIHYDROXYDIPHENYL METHANE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
7 words
A 2.2''-DIHYDROXYDIPHENYL METHANE COMPOUND OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |