US3736305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of copolymers of ethylene
Assignee: BASF SE
•
Filing: 1968-12-19
•
Granted: 1973-05-29
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Expires: 1988-12-19
Abstract
Abstract PRODUCTION OF COPOLYMERS OF ETHYLENE WHICH CONTAIN POLYMERIZED UNITS OF (1) MAJOR AMOUNTS OF ETHYLENE, (2) MINOR AMOUNTS OF C3 TO C12 ALKENECARBOXYLIC ACIDS, (3) MINOR AMOUNTS OF C3 TO C8 ALKENES, AND, IF DESIRED, (41) MINOR AMOUNTS OF ESTERS OF C3 TO C12 ALKENE CARBOXYLIC ACIDS WITH C3 TO C8 SECONDARY OF CONVENTIONAL ALKANOLS AND/OR (4**2) MINOR AMOUNTS OF CONVENTIONAL OTHER MONOMERS WHICH ARE COPOLYMERIZABLE WITH ETHYLENE.
Inventors
- 👤 K Kinkel
- 👤 H Pfannmueller
- 👤 Thomee G Schmidt
- 👤 F Mietzner
- 👤 V Gierth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:59
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |