Patent US2855340A successfully refreshed from Google Patents.
US2855340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing a tetracyclinetype antibiotic and terephthalic acid
Assignee: Pfizer Inc
•
Filing: 1957-03-04
•
Granted: 1958-10-07
•
Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Kent
- 👤 Elwin H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:37
CPC Classifications
A; A23; A23K; A23K20/00; A23K20/10; A23K20/195
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A COMPOSITION WHICH COMPRISES AT TETRACYCLINE-TYPE ANTIBIOTIC AND TEREPTHALIC ACID.
Claim 2
Dependent Claim
10 words
A COMPOSITION WHICH COMPRISES AT TETRACYCLINE-TYPE ANTIBIOTIC AND TEREPTHALIC ACID.
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) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |