US3274166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modifying hydrocarbon polymers with poly (diazo) compounds
Assignee: Hercules LLC
•
Filing: 1963-06-19
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Granted: 1966-09-20
•
Expires: 1983-06-19
Abstract
No abstract record available.
Inventors
- 👤 David S Breslow
- 👤 Harold M Spurlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/23; C08K5/235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE PROCESS OF MODIFYING A HYDROCARBON POLYMER WHICH COMPRISES HEATING SAID POLYMER IN ADMIXTURE WITH FROM ABOUT 0.01% TO ABOUT 20% BASED ON THE WEIGHT OF THE POLYMER OF A POLY(DIAZO) COMPOUND SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
38 words
THE PROCESS OF MODIFYING A HYDROCARBON POLYMER WHICH COMPRISES HEATING SAID POLYMER IN ADMIXTURE WITH FROM ABOUT 0.01% TO ABOUT 20% BASED ON THE WEIGHT OF THE POLYMER OF A POLY(DIAZO) COMPOUND SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US2469819A
Cited
GB718906A
Cited
US2830978A
Cited
US3012020A
Cited
US3152107A
Cited
US3058944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |