Patent US2482391A successfully refreshed from Google Patents.
Patent US2838798A successfully refreshed from Google Patents.
US2838798A
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Process and apparatus for making inflated hollow articles by rotational casting
Assignee: Sun Rubber Co
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Filing: 1954-05-10
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Granted: 1958-06-17
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Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Rekettye Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:34
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/04; Y; Y10; Y10S; Y10S273/00; Y10S273/04; Y10S273/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1998897A
Cited
US2035774A
Cited
US2060962A
Cited
GB436424A
Cited
US2324974A
Cited
US2569869A
Cited
US2659107A
Cited
US2666952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |