US3152107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene crossliniking process
Assignee: WR Grace and Co
•
Filing: 1961-02-01
•
Granted: 1964-10-06
•
Expires: 1981-02-01
Abstract
No abstract record available.
Inventors
- 👤 Michel E Mullier
- 👤 Richard A Bafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:54
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/23
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
THE PROCESS WHICH COMPRISES INCORPORATING INTO A POLYMER OF ETHYLENE AT A TEMPERATURE ABOVE ITS MELTING POINT, 0.01 TO 2.0% BY WEIGHT OF SAID POLYMER OF AN ARYLAZOALKYLCARBOXAMIDE OF THE FORMULA,
References Cited (Backward Citations)
US2471959A
Cited
US2830978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |