US3301833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin copolymers and process for preparing them
Assignee: Montedison SpA
•
Filing: 1963-07-12
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Granted: 1967-01-31
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Natta Giulio
- 👤 Mazzanti Giorgio
- 👤 Valvassori Alberto
- 👤 Sartori Guido
- 👤 Turba Vittorio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:18
CPC Classifications
C; C08; C08F; C08F232/00; C08F232/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
HIGH MOLECULAR WEIGHT, SUBSTANTIALLY LILNEAR, AMORPHOUS, UNSATURATED COPOLYMERS OF ONE OR MORE POLYCYCLIC HYDROCARBON DIENES HAVING TWO ISOLATED NUCLEI AND CONTAINING ONE DOUBLE BOND IN EACH OF SAID NUCLEI, WITH ONE OR MORE MONOMERS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND ALIPHATIC ALPHA-OLEFINS HAVING THE GENERAL FORMULA R-CH=CH2, IN WHICH R IS AN ALKYL GROUP CONTAINING 1 TO 6 CARBON ATOMS, WHICH COPOLYMERS CONSIST OF MACROMOLECULES CONTAINING UNSATURATIONS AND CONSISTING OF MONOMERIC UNITS DERIVED FROM EACH OF THE MONOMERS EMPLOYED.
Claim 2
Dependent Claim
81 words
HIGH MOLECULAR WEIGHT, SUBSTANTIALLY LILNEAR, AMORPHOUS, UNSATURATED COPOLYMERS OF ONE OR MORE POLYCYCLIC HYDROCARBON DIENES HAVING TWO ISOLATED NUCLEI AND CONTAINING ONE DOUBLE BOND IN EACH OF SAID NUCLEI, WITH ONE OR MORE MONOMERS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND ALIPHATIC ALPHA-OLEFINS HAVING THE GENERAL FORMULA R-CH=CH2, IN WHICH R IS AN ALKYL GROUP CONTAINING 1 TO 6 CARBON ATOMS, WHICH COPOLYMERS CONSIST OF MACROMOLECULES CONTAINING UNSATURATIONS AND CONSISTING OF MONOMERIC UNITS DERIVED FROM EACH OF THE MONOMERS EMPLOYED.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |