US2656393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction products of hydrogen sulfide and salts of aci-nitro-hydrocarbons
Assignee: Union Oil Company of California
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Filing: 1952-02-19
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Granted: 1953-10-20
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Expires: 1972-02-19
Abstract
No abstract record available.
Inventors
- 👤 Clarence S Coe
- 👤 Thomas F Doumani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:59
CPC Classifications
C; C07; C07C; C07C381/00; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
NITROGEN-FREE SULFUR-CONTAINING PRODUCTS OBTAINED BY REACTING HYDROGEN SULFIDE WITH A COMPOUND SELECTED FROM THE CLASS CONSISTTING OF (1) SALTS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
23 words
NITROGEN-FREE SULFUR-CONTAINING PRODUCTS OBTAINED BY REACTING HYDROGEN SULFIDE WITH A COMPOUND SELECTED FROM THE CLASS CONSISTTING OF (1) SALTS HAVING THE GENERAL 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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |