US2676823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing ring
Assignee: Plastic Engineering and Sales Co
•
Filing: 1949-02-04
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Granted: 1954-04-27
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Expires: 1969-02-04
Abstract
No abstract record available.
Inventors
- 👤 Goldie R Olson
- 👤 Edward H Swazey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:08
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0053; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B32; B32B; B32B27/00; F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/108; B29K; B29K2101/00; B29K2101/10; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2309/00; B29K2309/08; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10S; Y10S277/00; Y10S277/924
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A MOLDED SEALING RING INLCUDING, AN ANNULUS HAVING CONCENTRIC LAMINAE OF WOVEN GLASS CLOTH AND A THERMOSETTING RESIN, THE LAMINAE BEING INTIMATELY ENGAGED AND COMPRESSED UNDER HEAT AND EXTREMELY HIGH PRESSURE OF APPROXIMATELY 10,000 POUNDS PER SQUARE INCH WHEREBY THE RESIN SEALS THE PORES OF AND BONDS TOGETHER THE WOVEN GLASS CLOTH LAMINAE AND COATS THE EXTERIOR OF THE RING.
References Cited (Backward Citations)
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US2096692A
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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) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |