Patent US2858306A successfully refreshed from Google Patents.
US2858306A
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Polymeric ethyleneimido phosphorus nitriles
Assignee: Olin Corp
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Filing: 1957-05-08
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Granted: 1958-10-28
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Expires: 1977-05-08
Abstract
No abstract record available.
Inventors
- 👤 Rudi F W Ratz
- 👤 Christoph J Grundmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:57
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/65812; C07F9/553; C07F9/564; C08; C08G; C08G73/00; C08G73/02; C08G73/0246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
POLYMERIC ETYLENEIMIDO PHOSPHORUS NITRILES OF THE FORMULA
Claim 2
Dependent Claim
7 words
POLYMERIC ETYLENEIMIDO PHOSPHORUS NITRILES OF 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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |