US3247159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High clarity polyethylene
Assignee: Union Carbide Corp
•
Filing: 1962-03-14
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Granted: 1966-04-19
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 James W Pendleton
- 👤 Joy C Hodges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:03
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A HOMOGENOUS COMPOSITION OF HIGH CLARITY POLYETHYLENE AND FROM 2 TO ABOUT 25 PARTS PER MILLION, BASED ON THE TOTAL WEIGHT OF SAID COMPOSITION, OF CARBON BLACK IN FINELY DIVIDED MICRON SIZE.
Claim 2
Dependent Claim
32 words
A HOMOGENOUS COMPOSITION OF HIGH CLARITY POLYETHYLENE AND FROM 2 TO ABOUT 25 PARTS PER MILLION, BASED ON THE TOTAL WEIGHT OF SAID COMPOSITION, OF CARBON BLACK IN FINELY DIVIDED MICRON SIZE.
References Cited (Backward Citations)
US2888424A
Cited
US2991264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |