US3074869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-sensitive compositions and articles therefrom
Assignee: 3M Co
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Filing: 1960-12-23
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Granted: 1963-01-22
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 Wesley R Workman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/068; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T428/31529
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
THE PROCESS FOR CURING AN EPOXY RESIN PREPOLYMER TO A HARD, ORGANIC-SOLVENT INSOLUBLE MASS WHICH COMPRISES MIXING AN EPOXY RESIN PREPOLYMER WITH A LATENT CURING AGENT WHICH HAS HAD SUBSTANTIALLY NO EXPOSURE TO ACTINIC LIGHT COMPRISING AN ORGANIC COMPOUND CONTAINING AT LEAST ONE NITROSAMINO GROUP TOGETHER WITH AN AMOUNT OF A FREE RADICAL INITIATOR AT LEAST SUFFICIENT TO RENDER SAID NITROSAMINO GROUP PHOTOACTIVATABLE, IRRADIATING SAID MIXTURE WITH ACTINIC LIGHT, AND HEARING THE IRRADICATED MIXTURE AT A TEMPERATURE IN THE RANGE OF ABOUT 50*C. TO ABOUT 150*C.
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |