US2668277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp cap for tubular electric lamps
Assignee: Hartford National Bank and Trust Co
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Filing: 1950-08-02
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Granted: 1954-02-02
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Expires: 1970-08-02
Abstract
No abstract record available.
Inventors
- 👤 Anderson Charles Henri Joseph
- 👤 Johannes Hendricus Franci Werd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:20
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/05; H01R33/06; H01R33/08; H01R33/0836; H01R33/0854
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |