US2844418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seal
Assignee: Alsacienne de Constructions Mecaniques SA
•
Filing: 1957-10-10
•
Granted: 1958-07-22
•
Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 Audemar Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:32
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/06; F04D29/061; F04D29/04; F04D29/046; F04D29/047; F04D29/08; F04D29/10; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F16J15/406; F16J15/54; F05; F05B; F05B2240/00; F05B2240/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2777395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |