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US2636038A
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Surface active agents
Assignee: Atlas Powder Co
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Filing: 1951-05-18
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Granted: 1953-04-21
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Expires: 1971-05-18
Abstract
No abstract record available.
Inventors
- 👤 Brandner John David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:07
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14; C10; C10M; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10N; C10N2030/00; C10N2030/12; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOUND CONFORMING TO THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
7 words
A COMPOUND CONFORMING TO THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2410318A
Cited
US2443825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |