US3418062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner structures
Assignee: Bloom Engineering Co Inc
•
Filing: 1966-08-08
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Granted: 1968-12-24
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 James E Hovis
- 👤 Rolland L Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:11
CPC Classifications
F; F27; F27D; F27D99/00; F27D99/0001; F27D99/0033; C; C21; C21D; C21D9/00; C21D9/70; F23; F23D; F23D11/00; F23D14/00; F23D14/20; F23D14/22; F23D17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |