Patent US3522225A successfully refreshed from Google Patents.
US3522225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization of elastomeric olefinic copolymers with organic diperoxides
Assignee: Montedison SpA
•
Filing: 1969-03-05
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Granted: 1970-07-28
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Expires: 1989-03-05
Abstract
No abstract record available.
Inventors
- 👤 Cesare Augusto Peri
- 👤 Giorgio Sugni
- 👤 Augusto Portolani
- 👤 Giuliano Ballini
- 👤 Robert Hugel
- 👤 Spartaco Fontani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3012016A
Cited
US3012020A
Cited
GB928533A
Cited
US3047552A
Cited
US3118866A
Cited
US3093620A
Cited
US3297795A
Cited
GB975724A
Cited
US3317454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |