US3437416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant burner
Assignee: Caloric Corp
•
Filing: 1967-05-16
•
Granted: 1969-04-08
•
Expires: 1987-05-16
Abstract
No abstract record available.
Inventors
- 👤 Domenick Saponara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:41
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR333034A
Cited
US960818A
Cited
US922502A
Cited
US1852154A
Cited
US2336816A
Cited
US2493266A
Cited
US3129749A
Cited
US3151659A
Cited
US3336915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |