US3391983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiating gas burner apparatus
Assignee: Panasonic Holdings Corp
•
Filing: 1966-08-09
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Granted: 1968-07-09
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Expires: 1986-08-09
Abstract
No abstract record available.
Inventors
- 👤 Harazono Shinichi
- 👤 Tajima Masahisa
- 👤 Tanimoto Shigeru
- 👤 Kobayashi Tsuneo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:37
CPC Classifications
F; F23; F23C; F23C99/00; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/145; F23C2700/00; F23C2700/04; F23C2700/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US377502A
Cited
GB494087A
Cited
US2936751A
Cited
US3191659A
Cited
US3114411A
Cited
US3147960A
Cited
US3233653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |