Patent US2340604A successfully refreshed from Google Patents.
Patent US2583569A successfully refreshed from Google Patents.
US2583569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of a new composition of matter
Assignee: Velsicol Corp
•
Filing: 1950-06-28
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Granted: 1952-01-29
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Expires: 1970-06-28
Abstract
No abstract record available.
Inventors
- 👤 Simon H Herzfeld
- 👤 Kleiman Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:30
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/08; C07D303/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A NEW COMPOSITION OF MATTER HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
9 words
A NEW COMPOSITION OF MATTER HAVING THE STRUCTURAL 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) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |