US3420844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrrole-2-carboxamido-propionamidines
Assignee: Pfizer Italia SRL
•
Filing: 1964-07-22
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Granted: 1969-01-07
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Federico Arcamone
- 👤 Sergio Penco
- 👤 Vincenzo Nicolella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:06
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07J; C07J75/00; C07D207/42; C07J9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE FORMULA
Claim 2
Dependent Claim
10 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE FORMULA
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |