US2638401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lukacs
Assignee: —
•
Filing: —
•
Granted: 1953-05-12
•
Expires: 1970-05-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:36
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/333; A61B5/338
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1647711A
Cited
US1573801A
Cited
US1804526A
Cited
US1897556A
Cited
US1991372A
Cited
US1955352A
Cited
US2017126A
Cited
US2049949A
Cited
US1921461A
Cited
US2065369A
Cited
US2153172A
Cited
US2147449A
Cited
US2273997A
Cited
US2428295A
Cited
US2310342A
Cited
US2386892A
Cited
US2329073A
Cited
US2369066A
Cited
US2424893A
Cited
US2502419A
Cited
US2439201A
Cited
US2504699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |