US3392690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burning apparatus
Assignee: LEONARD S WEGMAN
•
Filing: 1967-03-29
•
Granted: 1968-07-16
•
Expires: 1987-03-29
Abstract
No abstract record available.
Inventors
- 👤 Mandelbaum Herbert
- 👤 Leonard S Wegman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:34
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/34; F23G5/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US692165A
Cited
US2242653A
Cited
US2444095A
Cited
US2442686A
Cited
US2678008A
Cited
US2978998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |