US2456529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device
Assignee: Ingersoll Rand Co
•
Filing: 1945-10-20
•
Granted: 1948-12-14
•
Expires: 1965-10-20
Abstract
No abstract record available.
Inventors
- 👤 Naab Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:16
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US120565A
Cited
US788769A
Cited
US1239726A
Cited
US1385508A
Cited
US1574926A
Cited
US2134584A
Cited
US2208620A
Cited
US2298584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |