Patent US4422362A successfully refreshed from Google Patents.
Patent US3138565A successfully refreshed from Google Patents.
US3138565A
Expired / Lapsed
US
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Flame-retardant urea-formaldehyde molding compounds
Assignee: Honeywell International Inc
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Filing: 1959-07-21
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Granted: 1964-06-23
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Expires: 1979-07-21
Abstract
No abstract record available.
Inventors
- 👤 Frank B Rosenberger
- 👤 Jolliff Harry
- 👤 Campanaro Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:20
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/2279; C08L; C08L1/00; C08L23/00; C08L23/26; C08L23/28; C08L57/00; C08L57/06; C08L57/08; C08L61/00; C08L61/20; C08L61/22; C08L61/24; C08L27/00; C08L27/02; C08L27/04; C08L27/06; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A THERMOSETTABLE MOLDING COMPOUND THAT IS A SOLID PARTICULATE COMPOSITION COMPRISING: (1) AT LEAST 75% OF A MIXTURE CONTAINING FROM 63 TO 85 WEIGHT PERCENT UREAFORMALDEHYDE RESIN AND FROM 15 TO 40 WEIGHT PERCENT OF TOTAL FILLER ESSENTAILLY CONSISTING OF ALPHA CELLULOSE; (2) A MINOR AMOUNT UP TO 15 WEIGHT PERCENT BASED ON TOTAL COMPOSITION OF A COMPATIBLE SOLID STABLE CHLORINE-CONTAINING HYDROCARBON COMPOSITON HAVING A CHLORINE CONTENT OF FROM 45-70 WEIGHT PERCENT; AND (3) FROM 1/2 TO 10 WEIGHT PERCENT BASED ON TOTAL COMPOSITION OF ANTIMONY TRIOXIDE; THE MINIMUM PROPORTION OF SAID CHLORINE-CONTAINING COMPOUND PRESENT BEING EXPRESSED BY THE EQUATION P=12/(6A+1) WHERE P=WEIGHT PERCENT CHLORINE-CONTAINING COMPOSITION AND A=WEIGHT PERCENT ANTIMONY TRIOXIDE IN THE SOLID COMPOSITION.
Claim 2
Dependent Claim
115 words
A THERMOSETTABLE MOLDING COMPOUND THAT IS A SOLID PARTICULATE COMPOSITION COMPRISING: (1) AT LEAST 75% OF A MIXTURE CONTAINING FROM 63 TO 85 WEIGHT PERCENT UREAFORMALDEHYDE RESIN AND FROM 15 TO 40 WEIGHT PERCENT OF TOTAL FILLER ESSENTAILLY CONSISTING OF ALPHA CELLULOSE; (2) A MINOR AMOUNT UP TO 15 WEIGHT PERCENT BASED ON TOTAL COMPOSITION OF A COMPATIBLE SOLID STABLE CHLORINE-CONTAINING HYDROCARBON COMPOSITON HAVING A CHLORINE CONTENT OF FROM 45-70 WEIGHT PERCENT; AND (3) FROM 1/2 TO 10 WEIGHT PERCENT BASED ON TOTAL COMPOSITION OF ANTIMONY TRIOXIDE; THE MINIMUM PROPORTION OF SAID CHLORINE-CONTAINING COMPOUND PRESENT BEING EXPRESSED BY THE EQUATION P=12/(6A+1) WHERE P=WEIGHT PERCENT CHLORINE-CONTAINING COMPOSITION AND A=WEIGHT PERCENT ANTIMONY TRIOXIDE IN THE SOLID COMPOSITION.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |