Patent US2760951A successfully refreshed from Google Patents.
US2760951A
Expired / Lapsed
US
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Resinous nitromethane reaction products
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-05-16
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Granted: 1956-08-28
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Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Harold F Park
- 👤 Robert J Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:51
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218; C08G16/0231; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08G8/00; C08G8/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR PREPARING A MOLDABLE RESINOUS HEATREACTION PRODUCT WHICH COMPRISES REACTING FROM 0.5 TO 3 MOLS OF FORMALDEHYDE WITH 1 MOL OF A MIXTURE OF 90-5 MOL PERCENT NITROMETHANE AND 10-95 MOL PERCENT PHENOL IN THE PRESENCE OF A CONDENSATION CATALYST AT A TEMPERATURE OF AT LEAST 60* C.
Claim 2
Dependent Claim
50 words
A PROCESS FOR PREPARING A MOLDABLE RESINOUS HEATREACTION PRODUCT WHICH COMPRISES REACTING FROM 0.5 TO 3 MOLS OF FORMALDEHYDE WITH 1 MOL OF A MIXTURE OF 90-5 MOL PERCENT NITROMETHANE AND 10-95 MOL PERCENT PHENOL IN THE PRESENCE OF A CONDENSATION CATALYST AT A TEMPERATURE OF AT LEAST 60* C.
References Cited (Backward Citations)
US2053850A
Cited
US2531863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |