US3416029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashing incandescent lamp
Assignee: Philips North America LLC
•
Filing: 1966-03-29
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Granted: 1968-12-10
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Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Dewey M Griffith
- 👤 Charles W Hawkey
- 👤 Victor K Boughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:55
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/62; H01K1/625; F; F21; F21K; F21K5/00; F21K5/02
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |