Patent US2628654A successfully refreshed from Google Patents.
US2628654A
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Process and apparatus for the manufacture of sponge rubber products
Assignee: EDWARD D ANDREWS
•
Filing: 1950-04-15
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Granted: 1953-02-17
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Expires: 1970-04-15
Abstract
No abstract record available.
Inventors
- 👤 Sterling W Alderfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:56
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T442/00; Y10T442/30; Y10T442/3325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22290E
Cited
US1696129A
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US1777945A
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US2161308A
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US2233274A
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US2445732A
Cited
US2441235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |