US3555610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket ring
Assignee: Signet Optical Corp
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Filing: 1969-12-15
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Granted: 1971-01-19
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Expires: 1989-12-15
Abstract
Abstract A GASKET RING OF RESILIENT ELASTOMERIC MATERIAL FOR USE WITH UPPER AND LOWER MOLD MEMBERS TO CASE PLASTIC OPTICAL ELEMENTS. THE GASKET IS CONTOURED TO EMBRACE AND SEAT OVER AN ANNULAR SUPPORT CARRIED BY THE LOWER MOLD MEMBER WITH THE LOWER EDGE OF ITS INNER SIDE WALL SEATED AGAINST AND HAVING LINE CONTACT WITH THE UPPER EDGE OF THE ANNULAR SUPPORT. THE UPPER EDGE OF THE GASKET IS SHAPED TO HAVE LINE CONTACT WITH THE LOWER SURFACE OF THE UPPER MOLD MEMBER.
Inventors
- 👤 Donald R Reiterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/104; Y; Y10; Y10S; Y10S425/00; Y10S425/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |