US3057646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary seal with cooling means
Assignee: Individual
•
Filing: 1959-12-23
•
Granted: 1962-10-09
•
Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 Brumagim Ivan Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:38
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0824; F16L27/0828; F26; F26B; F26B11/00; F26B11/02; F26B11/024; F27; F27B; F27B7/00; F27B7/20; F27B7/22; F27B7/24; Y; Y10; Y10S; Y10S277/00; Y10S277/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |