US3284664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulation of fluorescent lamps by peltier cooling means
Assignee: GTE Sylvania Inc
•
Filing: 1964-02-06
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Granted: 1966-11-08
•
Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Morin
- 👤 Carl J Bernier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:42
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/70; H01J61/72; H01J61/02; H01J61/52; H01J61/523; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/18; H05B41/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
APPARATUS FOR OPERATING A LOW PRESSURE MERCURY LAMP, SAID APPARATUS COMPRISING A THERMOELECTRIC JUNCTION FORMED OF FLAT RIBBONS TO THE CURVATURE OF THE OUTER SURFACE OF THE LAMP, AND A SPRING TO PRESS THE JUNCTION AGAINST SAID OUTER SURFACE OF SAID LAMP.
Claim 2
Dependent Claim
42 words
APPARATUS FOR OPERATING A LOW PRESSURE MERCURY LAMP, SAID APPARATUS COMPRISING A THERMOELECTRIC JUNCTION FORMED OF FLAT RIBBONS TO THE CURVATURE OF THE OUTER SURFACE OF THE LAMP, AND A SPRING TO PRESS THE JUNCTION AGAINST SAID OUTER SURFACE OF SAID LAMP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |