Patent US1366958A successfully refreshed from Google Patents.
Patent US3551541A successfully refreshed from Google Patents.
US3551541A
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Method of polymerizing monomeric material into cast polymer sheets and the apparatus for the casting of said polymeric sheets
Assignee: ROSTERO SA
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Filing: 1969-12-11
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Granted: 1970-12-29
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Expires: 1989-12-11
Abstract
No abstract record available.
Inventors
- 👤 Carlo Rossetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:53
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/22; B29C39/38; B29C33/00; B29C33/02; B29C33/04; B29C33/20; B29C33/202; B29C35/00; B29C35/007; B29C39/26; B29C39/265; B29D; B29D7/00; B29D7/01; B29C2791/00; B29C2791/004; B29C2791/006; B29C37/00; B29C37/005; B29C37/006; B29K; B29K2033/00; B29K2033/04; B29K2105/00; B29K2105/0002
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) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |