US2883367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adducts of polyethylene and fumarates
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-01-04
•
Granted: 1959-04-21
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Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Dazzi Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:12
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
AN ADDUCT OF A PREFORMED HOMOPOLYMERIC ETHYLENE HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM 1,000 TO 15,000 AND A FUMARATE ESTER HAVING THE FORMULA
Claim 2
Dependent Claim
24 words
AN ADDUCT OF A PREFORMED HOMOPOLYMERIC ETHYLENE HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM 1,000 TO 15,000 AND A FUMARATE ESTER HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |