US3015329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner box for top burner unit
Assignee: Chambers Corp
•
Filing: 1955-02-21
•
Granted: 1962-01-02
•
Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 John E Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/08; F24C3/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2649850A
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US2806464A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |