Patent US3516679A successfully refreshed from Google Patents.
US3516679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing arrangement
Assignee: Individual
•
Filing: 1967-08-22
•
Granted: 1970-06-23
•
Expires: 1987-08-22
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:37
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/002; F16J15/006; Y; Y10; Y10S; Y10S277/00; Y10S277/926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE181954C
Cited
US2073768A
Cited
US2088703A
Cited
US2350697A
Cited
US2485940A
Cited
US3362719A
Cited
US3351350A
Cited
US3348849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |