Patent US3051497A successfully refreshed from Google Patents.
US3051497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means between relatively rotating parts
Assignee: Rolls Royce PLC
•
Filing: 1958-01-20
•
Granted: 1962-08-28
•
Expires: 1978-01-20
Abstract
No abstract record available.
Inventors
- 👤 Wigg Raymond Ernest
- 👤 Battle Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:07
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F16J15/406; F01; F01D; F01D11/00; F01D11/02; F01D11/04; Y; Y10; Y10S; Y10S277/00; Y10S277/929
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1041485A
Cited
GB148932A
Cited
US1964063A
Cited
US2042691A
Cited
US2149974A
Cited
US2100220A
Cited
US2182981A
Cited
US2329990A
Cited
US2389528A
Cited
US2474123A
Cited
US2589631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |