US3287586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant growth lamp
Assignee: GTE Sylvania Inc
•
Filing: 1963-10-01
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Granted: 1966-11-22
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Expires: 1983-10-01
Abstract
No abstract record available.
Inventors
- 👤 Elwood D Bickford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:14
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/38; H01J61/42; H01J61/44; C; C09; C09K; C09K11/00; C09K11/08; C09K11/67; C09K11/68; C09K11/70; C09K11/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PLANT GROWTH STIMULATING LAMP COMPRISING AN ELONGATED SEALED TUBE OF LIGHT-TRANSMITTING MATERIAL, AN ELECTRODE AT EACH END THEREOF, A FILLING OF INERT GAS AT LOW PRESSURE AND A QUANTITY OF MERCURY THEREIN, AND ON THE INTERIOR SURFACE OF SAID ENVELOPE A FLUORESCENT COATING ADAPTED, WHEN EXCITED BY A DISCHARGE BETWEEN SAID ELECTRODES, TO EMIT RADIATION HAVING A SPECTRAL ENERGY DISTRIBUTION SUCH THAT THE RATIO OF 560-700 MILLIMICRNS RADIATION TO 400-500 MILLIMICRONS RADIATION IS BETWEEN ABOUT 1.5 TO 2.5 AND TO 700-800 MILLIMICRONS RADIATION IS BETWEEN ABOUT 4.8 TO 6.8, THE RATIO OF 400-500 MILLIMICRONS RADIATION OF 700-800 MILLIMICRONS RADIATION IS BETWEEN ABOUT 2.5 TO 3.5, AND THE RATIO OF 560-800 MILLIMICRONS RADIATIONS TO 400-500 MILLIMICRONS RADIATIONS IS BETWEEN ABOUT 1.7 TO 2.7.
Claim 2
Dependent Claim
123 words
A PLANT GROWTH STIMULATING LAMP COMPRISING AN ELONGATED SEALED TUBE OF LIGHT-TRANSMITTING MATERIAL, AN ELECTRODE AT EACH END THEREOF, A FILLING OF INERT GAS AT LOW PRESSURE AND A QUANTITY OF MERCURY THEREIN, AND ON THE INTERIOR SURFACE OF SAID ENVELOPE A FLUORESCENT COATING ADAPTED, WHEN EXCITED BY A DISCHARGE BETWEEN SAID ELECTRODES, TO EMIT RADIATION HAVING A SPECTRAL ENERGY DISTRIBUTION SUCH THAT THE RATIO OF 560-700 MILLIMICRNS RADIATION TO 400-500 MILLIMICRONS RADIATION IS BETWEEN ABOUT 1.5 TO 2.5 AND TO 700-800 MILLIMICRONS RADIATION IS BETWEEN ABOUT 4.8 TO 6.8, THE RATIO OF 400-500 MILLIMICRONS RADIATION OF 700-800 MILLIMICRONS RADIATION IS BETWEEN ABOUT 2.5 TO 3.5, AND THE RATIO OF 560-800 MILLIMICRONS RADIATIONS TO 400-500 MILLIMICRONS RADIATIONS IS BETWEEN ABOUT 1.7 TO 2.7.
References Cited (Backward Citations)
US2178436A
Cited
US2919365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |