Patent US2727760A successfully refreshed from Google Patents.
US2727760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed rotary fluid seal
Assignee: Fawick Corp
•
Filing: 1950-10-07
•
Granted: 1955-12-20
•
Expires: 1970-10-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Fawick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:32
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/54; F16L; F16L27/00; F16L27/08; F16L27/087; F16L27/093; Y; Y10; Y10S; Y10S277/00; Y10S277/907; Y10S277/911
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US839626A
Cited
US1459454A
Cited
DE496353C
Cited
US2042691A
Cited
US2258008A
Cited
US2269659A
Cited
US2402224A
Cited
US2462006A
Cited
US2558990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |