US3342622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter ribbon impregnated with ink comprising heat-polymerizable ester monomer
Assignee: NRG Manufacturing Ltd
•
Filing: 1964-08-10
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Granted: 1967-09-19
•
Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Croker John Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:58
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06; B; B41; B41C; B41C1/00; B41C1/10; B41C1/1091; B41J; B41J31/00; B41J31/05; C08F18/00; C08F18/02; C08F18/04; C08F18/08; C08F263/00; C08F263/06; C08F263/08; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/106; Y; Y10; Y10T; Y10T442/00; Y10T442/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A TYPEWRITER RIBBON IMPREGNATED WITH AN INK COMPRISING A HEAT-POLYMERIZABLE ESTER MONOMER SELECTED FROM THE GROUP CONSISTING OF METHYL METHACRYLATE, BUTYL METHACRYLATE, MONOMETHYL ETHYLENE GLYCOL ACRYLATE, DECYL ACRYLATE, DI-ALLYL PHTHALATE, AND DI-ALLYL ISOPHTHALATE, A LOW TEMPERATURE CATALYST TO ALLOW POLYMERIZATION OF THE MONOMER AT LOW TEMPERATURES AND A POLYMERIZATION INHIBITOR WHICH IS EFFECTIVE AT ROOM TEMPERATURE BUT SUBSTANTIALLY INEFFECTIVE AT ELEVATED TEMPERATURES.
Claim 2
Dependent Claim
62 words
A TYPEWRITER RIBBON IMPREGNATED WITH AN INK COMPRISING A HEAT-POLYMERIZABLE ESTER MONOMER SELECTED FROM THE GROUP CONSISTING OF METHYL METHACRYLATE, BUTYL METHACRYLATE, MONOMETHYL ETHYLENE GLYCOL ACRYLATE, DECYL ACRYLATE, DI-ALLYL PHTHALATE, AND DI-ALLYL ISOPHTHALATE, A LOW TEMPERATURE CATALYST TO ALLOW POLYMERIZATION OF THE MONOMER AT LOW TEMPERATURES AND A POLYMERIZATION INHIBITOR WHICH IS EFFECTIVE AT ROOM TEMPERATURE BUT SUBSTANTIALLY INEFFECTIVE AT ELEVATED TEMPERATURES.
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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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |