US2670115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp holder
Assignee: Westinghouse Electric Corp
•
Filing: 1951-10-26
•
Granted: 1954-02-23
•
Expires: 1971-10-26
Abstract
No abstract record available.
Inventors
- 👤 John E Brock
- 👤 Zanotti Dominick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:34
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/385; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44966; Y10T24/44974
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1457029A
Cited
US2162209A
Cited
US2265381A
Cited
US2247513A
Cited
US2249651A
Cited
US2529153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |