Patent US2923050A successfully refreshed from Google Patents.
US2923050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp basing machinery
Assignee: GTE Sylvania Inc
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Filing: 1958-02-10
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Granted: 1960-02-02
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Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 Dwight J Dwinell
- 👤 George N Elliott
- 👤 Richard D Maybury
- 👤 Frank E Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:08
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; H01J9/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR911497A
Cited
US2720690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |