Patent US3958994A successfully refreshed from Google Patents.
Patent US3464884A successfully refreshed from Google Patents.
US3464884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyallyl ester modified melamine molding
Assignee: BROOKPARK PLASTICS Inc
•
Filing: 1966-06-30
•
Granted: 1969-09-02
•
Expires: 1986-06-30
Abstract
No abstract record available.
Inventors
- 👤 Herman V Boenig
- 👤 James A Waters Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:51
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866; Y10T428/3187; Y10T428/31873; Y10T428/31942; Y10T428/31949
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A MOLDED ARTICLE CONSISTING ESSENTIALLY OF A BASE LAYER OF A POLYMERIZED AMINOPLAST RESIN CONTAINING BETWEEN ABOUT 20% AND ABOUT 60% BY WEIGHT OF A FILLER MATERIAL, AND A SURFACE LAYER INTEGRAL THEREWITH CONSISTING ESSENTIALLY OF A POLYMERIZED ALLYL ESTER PREPOLYMER CONTAINING SUBSTANTIALLY NO FILLER MATERIAL, THE PROPORTION OF SAID ALLYL ESTER BEING BETWEEN ABOUT 5% AND ABOUT 35% BY WEIGHT OF THE TOTAL.
Claim 2
Dependent Claim
64 words
A MOLDED ARTICLE CONSISTING ESSENTIALLY OF A BASE LAYER OF A POLYMERIZED AMINOPLAST RESIN CONTAINING BETWEEN ABOUT 20% AND ABOUT 60% BY WEIGHT OF A FILLER MATERIAL, AND A SURFACE LAYER INTEGRAL THEREWITH CONSISTING ESSENTIALLY OF A POLYMERIZED ALLYL ESTER PREPOLYMER CONTAINING SUBSTANTIALLY NO FILLER MATERIAL, THE PROPORTION OF SAID ALLYL ESTER BEING BETWEEN ABOUT 5% AND ABOUT 35% BY WEIGHT OF THE TOTAL.
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) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |