US2433176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing machine
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1944-10-18
•
Granted: 1947-12-23
•
Expires: 1964-10-18
Abstract
No abstract record available.
Inventors
- 👤 John N Van Epps
- 👤 John W Kraus
- 👤 Magyar Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:16
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/78; B29C65/7841; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81457; B29C66/82; B29C66/822; B29C66/8221; B29C66/8227; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8324; B65; B65B; B65B51/00; B65B51/10; B65B51/14; B65B51/146
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US639262A
Cited
US2000461A
Cited
US2133716A
Cited
US2140117A
Cited
US2114624A
Cited
US2166761A
Cited
US2175031A
Cited
US2351058A
Cited
US2340510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |