US2641576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerization process and compositions
Assignee: ALEXANDER H KERR AND Co I
•
Filing: 1948-11-06
•
Granted: 1953-06-09
•
Expires: 1968-11-06
Abstract
No abstract record available.
Inventors
- 👤 Carrol C Sachs
- 👤 Bond John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:11
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
AS A COMPOSITION OF MATTER, A CATALYZED PHOTOPOLYMERIZABLE RESINOPHOR COMPOSITION CONSISTING ESSENTIALLY OF AN ETHYLENICALLY UNSATURATED RESINOPHOR CONTAINING DISPERSED THEREIN A MINOR PROPORTION OF A HALOGENATED MONO KETALDONYL HAVING THE FORMULA:
Claim 2
Dependent Claim
31 words
AS A COMPOSITION OF MATTER, A CATALYZED PHOTOPOLYMERIZABLE RESINOPHOR COMPOSITION CONSISTING ESSENTIALLY OF AN ETHYLENICALLY UNSATURATED RESINOPHOR CONTAINING DISPERSED THEREIN A MINOR PROPORTION OF A HALOGENATED MONO KETALDONYL HAVING THE FORMULA:
References Cited (Backward Citations)
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US2367660A
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US2367661A
Cited
US2413973A
Cited
US2448828A
Cited
US2548685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |