Patent US2987696A successfully refreshed from Google Patents.
US2987696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp base with collared insulator
Assignee: General Electric Co
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Filing: 1957-10-24
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Granted: 1961-06-06
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Expires: 1977-10-24
Abstract
No abstract record available.
Inventors
- 👤 Henry L Rudler
- 👤 Howard G Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:54
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US537498A
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US760065A
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US775689A
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US905478A
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US1965231A
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US1955629A
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US2519328A
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US2403137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |