Patent US2622187A successfully refreshed from Google Patents.
US2622187A
Expired / Lapsed
US
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Microwave pressure cooker
Assignee: Raytheon Co
•
Filing: 1947-01-14
•
Granted: 1952-12-16
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Expires: 1967-01-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:31
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/08; A47J27/088; A47J36/00; A47J36/02; A47J36/027; Y; Y10; Y10S; Y10S99/00; Y10S99/14
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) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |