US3461334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic discharge lamp
Assignee: Philips North America LLC
•
Filing: 1967-02-27
•
Granted: 1969-08-12
•
Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 William J Knochel
- 👤 Hugh D Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:24
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/36; H01J61/54; H01J61/545
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2416927A
Cited
US2416661A
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US2449113A
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US2508114A
Cited
US2919369A
Cited
US3229146A
Cited
US3243635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |