US3536947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure discharge lamps
Assignee: Toshiba Corp
•
Filing: 1968-03-20
•
Granted: 1970-10-27
•
Expires: 1988-03-20
Abstract
No abstract record available.
Inventors
- 👤 Tadatoshi Higashi
- 👤 Satoshi Nagano
- 👤 Leo Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/18; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7704; H01J61/38; H01J61/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3334261A
Cited
US3452238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |