US2959217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas fired burner
Assignee: —
•
Filing: —
•
Granted: 1960-11-08
•
Expires: 1977-11-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:54
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/48; F23D14/58; F23D14/583; F23D14/586; F23D14/02; F23D14/04; F23D14/06; F23D14/10; F23D14/105; F23D14/70; F23D2203/00; F23D2203/10; F23D2203/101; F23D2203/1012; F23D2213/00; F23D2900/00; F23D2900/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US611248A
Cited
US1063412A
Cited
US1927422A
Cited
US2159284A
Cited
US2242176A
Cited
US2327339A
Cited
US2541428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |