Patent US2973379A successfully refreshed from Google Patents.
US2973379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omega-alkylmercurythio fatty acids, derivatives thereof and process of preparing thesame
Assignee: Astellas Pharma Inc
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Filing: 1959-01-19
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Granted: 1961-02-28
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Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Kabayashi Kanjiro
- 👤 Suzuki Hideo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:47
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
COMPOUNDS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
COMPOUNDS HAVING THE GENERAL FORMULA
Claim 3
Dependent Claim
9 words
IN A PROCESS OF PREPARING COMPOUNDS OF THE FORMULA
Claim 4
Dependent Claim
9 words
IN A PROCESS OF PREPARING COMPOUNDS 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) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |