US2647117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of nitrogen-containing materials from olefins
Assignee: ExxonMobil Oil Corp
•
Filing: 1949-11-29
•
Granted: 1953-07-28
•
Expires: 1969-11-29
Abstract
No abstract record available.
Inventors
- 👤 Howard D Hartough
- 👤 Jr Joseph J Dickert
- 👤 Seymour L Meisel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:54
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/04; C07D265/06; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
BIS-(TETRAHYDRO-1,3-OXAZINO)-ALKANES HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
5 words
BIS-(TETRAHYDRO-1,3-OXAZINO)-ALKANES HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
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US2243295A
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US2287464A
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US2312414A
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US2458526A
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US2447822A
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US2476559A
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US2559567A
Cited
US2453086A
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US2490392A
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US2533798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |