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Patent US3940420A successfully refreshed from Google Patents.
US3940420A
Expired / Lapsed
US
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Compound, dithiobis-(succinimidyl propionate)
Assignee: Pierce Chemical Co
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Filing: 1974-07-15
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Granted: 1976-02-24
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Expires: 1994-07-15
Abstract
Abstract The present disclosure describes preparation of the novel compound, dithiobis-(succinimidyl propionate) represented by the following structure: ##EQU1## MW 404.42
Inventors
- 👤 Paul K. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:30
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
The compound dithiobis-(succinimidyl propionate) represented by the formula ##EQU3##
Claim 2
Dependent Claim
9 words
The compound dithiobis-(succinimidyl propionate) represented by the formula ##EQU3##
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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |