Patent US2043695A successfully refreshed from Google Patents.
Patent US2976575A successfully refreshed from Google Patents.
US2976575A
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Method for molding o-rings and the like
Assignee: Plastic and Rubber Products Co
•
Filing: 1957-01-28
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Granted: 1961-03-28
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Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Charles J Daubenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:15
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/027; B29D; B29D99/00; B29D99/0053; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/26; B29L2031/709; B29L2031/7096; Y; Y10; Y10S; Y10S264/00; Y10S264/14; Y10S425/00; Y10S425/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1978985A
Cited
US1989724A
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US2027165A
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US2148079A
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US2569226A
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US2607080A
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US2646595A
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US2615203A
Cited
US2671933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |