Patent US2574516A successfully refreshed from Google Patents.
US2574516A
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Unsaturated aliphatic phosphonamides
Assignee: Glenn L Martin Co
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Filing: 1948-11-26
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Granted: 1951-11-13
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Expires: 1968-11-26
Abstract
No abstract record available.
Inventors
- 👤 George E Walter
- 👤 Hornstein Irwin
- 👤 George M Steinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:37
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/24; C07F9/2404; C07F9/2412; C07F9/2454; C07F9/2458; C10; C10M; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
11 words
AS A NEW COMPOSITION OF MATTER, DIALLYL PHOSPHONAMIDE HAVING THE FORMULA
References Cited (Backward Citations)
US2151380A
Cited
US2394829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |