US3038873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of an organic isocyanate with an oxygen-or sulfurcondensed petroleum hydrocarbon, method of making same, and mixture thereof with an epoxy resin
Assignee: Individual
•
Filing: 1957-04-16
•
Granted: 1962-06-12
•
Expires: 1977-04-16
Abstract
No abstract record available.
Inventors
- 👤 Franklin I L Lawrence
- 👤 Richard G Crumley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:35
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A TACKY ADHESIVE CONDENSATION PRODUCT PRODUCED BY CONTACTING A PETROLEIUM HYDROCARBON STARTING MATERIAL HAVING AN EBULLIOSCOPIC MOLECULAR WEIGHT OF AT LEAST ABOUT 500 AT A TEMPERATURE OF AT LEAST ABOUT 400*F. WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL SULFUR AND ELEMENTAL OXYGEN TO PRODUCE A FIRST CONDENSATION PRODUCT ESSENTIALLY FREE OF ACID, AND THEREAFTER REACTING SAID FIRST CONDENSATION PRODUCT WITH A MXITURE OF AN ORGANIC ISOCYANATE AND A 1,2-EPOXY RESIN.
Claim 2
Dependent Claim
73 words
A TACKY ADHESIVE CONDENSATION PRODUCT PRODUCED BY CONTACTING A PETROLEIUM HYDROCARBON STARTING MATERIAL HAVING AN EBULLIOSCOPIC MOLECULAR WEIGHT OF AT LEAST ABOUT 500 AT A TEMPERATURE OF AT LEAST ABOUT 400*F. WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ELEMENTAL SULFUR AND ELEMENTAL OXYGEN TO PRODUCE A FIRST CONDENSATION PRODUCT ESSENTIALLY FREE OF ACID, AND THEREAFTER REACTING SAID FIRST CONDENSATION PRODUCT WITH A MXITURE OF AN ORGANIC ISOCYANATE AND A 1,2-EPOXY RESIN.
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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) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |