Patent US2533798A successfully refreshed from Google Patents.
US2533798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-thenylamines
Assignee: ExxonMobil Oil Corp
•
Filing: 1948-07-01
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Granted: 1950-12-12
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Expires: 1968-07-01
Abstract
No abstract record available.
Inventors
- 👤 Howard D Hartough
- 👤 Seymour L Meisel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:59
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/26; C07D333/28; C07D333/06; C07D333/14; C07D333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
AS A NEW COMPOSITION OF MATTER, A THENYLAMINE HAVING A COMPOSITION CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
15 words
AS A NEW COMPOSITION OF MATTER, A THENYLAMINE HAVING A COMPOSITION CORRESPONDING TO THE 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) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |