US2720855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferrule heating unit for a lead wire ferrule brazing machine
Assignee: Westinghouse Electric Corp
•
Filing: 1951-11-27
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Granted: 1955-10-18
•
Expires: 1971-11-27
Abstract
No abstract record available.
Inventors
- 👤 George D Brent
- 👤 Ernest K Bee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:12
CPC Classifications
H; H01; H01K; H01K3/00; H01K3/28; H01J; H01J9/00; H01J9/24; H01J9/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050088A
Cited
US2069386A
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US2082080A
Cited
US2237186A
Cited
US2297950A
Cited
US2531015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |