Patent US3476726A successfully refreshed from Google Patents.
US3476726A
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US
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Homopolymers and copolymers of unsaturated tertiary amines,and process for producing the same
Assignee: Montedison SpA
•
Filing: 1966-11-28
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Granted: 1969-11-04
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Expires: 1986-11-28
Abstract
No abstract record available.
Inventors
- 👤 Umberto Giannini
- 👤 Germana Bruckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:24
CPC Classifications
C; C08; C08F; C08F26/00; C08F26/02; C08F12/00; C08F12/02; C08F12/04; C08F12/14; C08F12/26; C08F12/28; C08F210/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
POLY-(5) N,N-DIISOPROPYLAMINO-(1)-PENTENE CHARACTERIZED IN HAVING A POWDER SPECTRUM (CU-K-ALPHA) WHICH SHOWS THE MOST INTENSE REFLECTIONS FOR ANGLE 2$ OF 6.2*, 8.5* AND 16.3*.
Claim 2
Dependent Claim
23 words
POLY-(5) N,N-DIISOPROPYLAMINO-(1)-PENTENE CHARACTERIZED IN HAVING A POWDER SPECTRUM (CU-K-ALPHA) WHICH SHOWS THE MOST INTENSE REFLECTIONS FOR ANGLE 2$ OF 6.2*, 8.5* AND 16.3*.
References Cited (Backward Citations)
US3293326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |