US2962987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerators
Assignee: Calcinator Corp
•
Filing: 1955-02-17
•
Granted: 1960-12-06
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 John W Hebert
- 👤 Paul R Schubert
- 👤 Henry L Coles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:40
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/07; F23G5/00; F23G5/08; F23G5/12; F23G5/14; F23M; F23M9/00; F23M9/06
Claims Analysis
Total Claims: 0
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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) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |