US2725919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular lamp base chucks for basing machine
Assignee: Westinghouse Electric Corp
•
Filing: 1951-10-16
•
Granted: 1955-12-06
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Expires: 1971-10-16
Abstract
No abstract record available.
Inventors
- 👤 George D Brent
- 👤 John M Campbell
- 👤 Daniel S Gustin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:57
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/30; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1768; Y10T156/1771
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US821946A
Cited
US822213A
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US1708756A
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US1760507A
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US1813425A
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US2115575A
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US2264304A
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US2342041A
Cited
US2439884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |