US3262001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp
Assignee: US Philips Corp
•
Filing: 1964-01-08
•
Granted: 1966-07-19
•
Expires: 1984-01-08
Abstract
No abstract record available.
Inventors
- 👤 Rijckeart Josephus Franciscus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:02
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189701887A
Cited
US1969641A
Cited
GB612551A
Cited
GB728963A
Cited
US2705310A
Cited
US2860274A
Cited
US3001096A
Cited
US3156841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |