US2654181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing apparatus
Assignee: RCA Corp
•
Filing: 1949-11-15
•
Granted: 1953-10-06
•
Expires: 1969-11-15
Abstract
No abstract record available.
Inventors
- 👤 Andrew L Lucarelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:59
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/26; H01J9/263; H01J5/00; H01J5/20; H01J5/22; H01J5/26; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0041; H01J2893/0043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1351770A
Cited
US1420921A
Cited
US1591716A
Cited
US916209A
Cited
US1655140A
Cited
US1530884A
Cited
US1757211A
Cited
DE544066C
Cited
US2085790A
Cited
US2164285A
Cited
US2237186A
Cited
US2296307A
Cited
US2349822A
Cited
US2482494A
Cited
US2446000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |