Patent US2505067A successfully refreshed from Google Patents.
US2505067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic photopolymerization process and compositions
Assignee: Alexander H Kerr & Co
•
Filing: 1947-09-29
•
Granted: 1950-04-25
•
Expires: 1967-09-29
Abstract
No abstract record available.
Inventors
- 👤 Carrol C Sachs
- 👤 Bond John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:21
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46; Y; Y10; Y10S; Y10S502/00; Y10S502/522
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
AS A NEW COMPOSITION OF MATTER A CATALYST PHOTOPOLYMERIZABLE RESINOPHORIC COMPOUND CONSISTING ESSENTIALLY OF AN ETHYLENICALLY UNSATURATED PHOTOPOLYMERIZABLE RESINOPHOR CONTAINING DISPERSED THEREIN A MINOR PROPORTION OF A PHOTOPOLYMERIZATION CATALYST CONSISTING ESSENTIALLY OF A HALOALKYL SUBSTITUTED POLYNUCLEAR AROMATIC COMPOUND CONTAINING CONDENSED BENZENE RING IN WHICH THE HALOGEN IS IN THE 1 POSITION IN THE ALKYL SUBSTITUENT.
Claim 2
Dependent Claim
55 words
AS A NEW COMPOSITION OF MATTER A CATALYST PHOTOPOLYMERIZABLE RESINOPHORIC COMPOUND CONSISTING ESSENTIALLY OF AN ETHYLENICALLY UNSATURATED PHOTOPOLYMERIZABLE RESINOPHOR CONTAINING DISPERSED THEREIN A MINOR PROPORTION OF A PHOTOPOLYMERIZATION CATALYST CONSISTING ESSENTIALLY OF A HALOALKYL SUBSTITUTED POLYNUCLEAR AROMATIC COMPOUND CONTAINING CONDENSED BENZENE RING IN WHICH THE HALOGEN IS IN THE 1 POSITION IN THE ALKYL SUBSTITUENT.
Claim 3
Dependent Claim
61 words
A PROCESS OF PHOTOPOLYMERIZATION COMPRISING THE STEPS OF ADDING TO AN ETHYLENICALLY UNSATURATED PHOTOPOLYMERIZABLE RESINOPHOR FROM ABOUT .001% TO ABOUT 5% OF A PHOTOPOLYMERIZATION CATALYST CONSISTING ESSENTIALLY OF A HALOALKYL SUBSTITUTED POLYNUCLEAR AROMATIC COMPOUND, IN WHICH THE HALOGEN IS IN THE 1 POSITION IN THE ALKYL SUBSTITUENT, AND EXPOSING THE SAME TO IRRADITION BY ACTINICALLY ACTIVE LIGHT TO POLYMERIZE THE RESINOPHOR.
Claim 4
Dependent Claim
61 words
A PROCESS OF PHOTOPOLYMERIZATION COMPRISING THE STEPS OF ADDING TO AN ETHYLENICALLY UNSATURATED PHOTOPOLYMERIZABLE RESINOPHOR FROM ABOUT .001% TO ABOUT 5% OF A PHOTOPOLYMERIZATION CATALYST CONSISTING ESSENTIALLY OF A HALOALKYL SUBSTITUTED POLYNUCLEAR AROMATIC COMPOUND, IN WHICH THE HALOGEN IS IN THE 1 POSITION IN THE ALKYL SUBSTITUENT, AND EXPOSING THE SAME TO IRRADITION BY ACTINICALLY ACTIVE LIGHT TO POLYMERIZE THE RESINOPHOR.
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) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |