Patent US3662163A successfully refreshed from Google Patents.
US2441235A
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Apparatus for making sponge rubber articles
Assignee: Uniroyal Inc
•
Filing: 1941-10-08
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Granted: 1948-05-11
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Expires: 1961-10-08
Abstract
No abstract record available.
Inventors
- 👤 George W Blair
- 👤 William J Clayton
- 👤 Edward H Clark
- 👤 John F Schott
- 👤 Alexis W Keen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:22
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |