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Patent US3104240A successfully refreshed from Google Patents.
US3104240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mannich bases of tetracycline antibiotics
Assignee: Bristol Myers Co
•
Filing: 1958-08-18
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Granted: 1963-09-17
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Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Lee C Cheney
- 👤 William C Risser
- 👤 William J Gottstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:05
CPC Classifications
C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 3
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2997471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |