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Patent US3013048A successfully refreshed from Google Patents.
US3013048A
Expired / Lapsed
US
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Isocy anato substituted aryl phosphorus esters
Assignee: Bayer AG
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Filing: 1959-01-29
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Granted: 1961-12-12
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Expires: 1979-01-29
Abstract
No abstract record available.
Inventors
- 👤 Holtschmidt Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:48
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/776; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12; C07F9/16; C07F9/165; C07F9/18; C07F9/22; C07F9/24; C07F9/2404; C07F9/242; C08G18/71; C08G18/717
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
ISOCYANATO PHOSPHORUS COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
ISOCYANATO PHOSPHORUS COMPOUNDS HAVING THE FORMULA
Claim 3
Dependent Claim
10 words
A PROCESS FOR THE PREPARATION OF TRIISOCYANATO PHENPHOPHATE WITH PHOSGENE.
Claim 4
Dependent Claim
10 words
A PROCESS FOR THE PREPARATION OF TRIISOCYANATO PHENPHOPHATE WITH PHOSGENE.
References Cited (Backward Citations)
US2691567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |