Patent US2480453A successfully refreshed from Google Patents.
US2480453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing bodies consisting of a core of chrome-iron or a similar chromium alloy and of a thin layer adapted to form a metal to glass seal
Assignee: Hartford National Bank and Trust Co
•
Filing: 1946-01-14
•
Granted: 1949-08-30
•
Expires: 1966-01-14
Abstract
No abstract record available.
Inventors
- 👤 Dorgelo Eduard Gerardus
- 👤 Lemmens Hendricus Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:40
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/30; C; C03; C03C; C03C27/00; C03C27/04; C03C27/042; C03C27/046; C23; C23C; C23C10/00; C23C10/28; C23C10/30; C23C10/32; C23C26/00; C23C8/00; C23C8/02; C25; C25D; C25D5/00; C25D5/48; C25D5/50; H01B; H01B1/00; H01B1/02; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/16; H01J19/42; H01J19/50; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005; H01J2893/0008; H01J2893/0012; H01J2893/0019; H01J2893/002
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1578254A
Cited
US1989236A
Cited
US2156262A
Cited
US2044742A
Cited
US2219738A
Cited
US2394919A
Cited
US2402834A
Cited
US2334020A
Cited
GB554004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |