Patent US2552796A successfully refreshed from Google Patents.
US2552796A
Expired / Lapsed
US
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Thiophene-sulfur monochloride synthetic resins
Assignee: ExxonMobil Oil Corp
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Filing: 1950-03-23
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Granted: 1951-05-15
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Expires: 1970-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Emil Koft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:30
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
THE METHOD OF PREPARING RESINOUS SYNTHETIC PRODUCTS, WHICH COMPRISES REACTING A THIOPHENE COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Independent Claim
17 words
THE METHOD OF PREPARING RESINOUS SYNTHETIC PRODUCTS, WHICH COMPRISES REACTING A THIOPHENE COMPOUND 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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |