Patent US857504A successfully refreshed from Google Patents.
US3077458A
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Non-aqueous fire ret ardant composition comprising a urea formaldehyde condensate
Assignee: Alim Corp
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Filing: 1958-05-26
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Granted: 1963-02-12
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Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Quelle Gerrit
- 👤 Redfarn Cyril Aubrey
- 👤 Thompson Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:36
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/18; C09D5/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A SUBSTANTIALLY NON-AQUEOUS INTUMESCENT FIRERETARDANT COMPOSITION COMPRISING A CONDENSATION PRODDUCT AND A FOAMING INGREDIENT IN ADMIXTURE IN A 1 TO 2 CARBON ATOM ALKANOL AS SOLVENT, SAID CONDENSATION PRODDUCT BEING A 1 TO 2 CARBON ALKANOL SOLUBLE UREA-FORMALDEHYDE CONDENSATION PRODUCT AND SAID FOAMING INGREDIENT BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIUM AND LOWER ALKYL-AMINE SALTS OF ROM MONO TO DIBULTY ESTERS OF O-PHOSPHORIC ACID.
Claim 2
Dependent Claim
65 words
A SUBSTANTIALLY NON-AQUEOUS INTUMESCENT FIRERETARDANT COMPOSITION COMPRISING A CONDENSATION PRODDUCT AND A FOAMING INGREDIENT IN ADMIXTURE IN A 1 TO 2 CARBON ATOM ALKANOL AS SOLVENT, SAID CONDENSATION PRODDUCT BEING A 1 TO 2 CARBON ALKANOL SOLUBLE UREA-FORMALDEHYDE CONDENSATION PRODUCT AND SAID FOAMING INGREDIENT BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIUM AND LOWER ALKYL-AMINE SALTS OF ROM MONO TO DIBULTY ESTERS OF O-PHOSPHORIC ACID.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |