US3227907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge lamp with integral pressure regulator
Assignee: GTE Sylvania Inc
•
Filing: 1962-12-31
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Granted: 1966-01-04
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Carl J Bernier
- 👤 Richard A Menelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:50
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H01J61/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN ELECTRIC DISCHARGE LAMP COMPRISING A SEALED ENCLOSING ENVELOPE, ELECTRODES BETWEEN WHICH A DISCHARGE CAN BE PRODUCED IN SAID ENVELOPE, A FILLING OF INERT GAS AT LOW PRESSURE AND A QUANTITY OF MERCURY IN SAID ENVELOPE, A QUANTITY OF INDIUM IN A PORTION OF SAID LAMP AWAY FROM SAID ELECTRODES, AND A QUANTITY OF INDIUM ON AT LEAST ONE OF SAID ELECTRODES.
Claim 2
Dependent Claim
62 words
AN ELECTRIC DISCHARGE LAMP COMPRISING A SEALED ENCLOSING ENVELOPE, ELECTRODES BETWEEN WHICH A DISCHARGE CAN BE PRODUCED IN SAID ENVELOPE, A FILLING OF INERT GAS AT LOW PRESSURE AND A QUANTITY OF MERCURY IN SAID ENVELOPE, A QUANTITY OF INDIUM IN A PORTION OF SAID LAMP AWAY FROM SAID ELECTRODES, AND A QUANTITY OF INDIUM ON AT LEAST ONE OF SAID ELECTRODES.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |