US3427422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave heating apparatus
Assignee: Patelhold Patenverwertungs and Elektro-Holding AG
•
Filing: 1966-05-18
•
Granted: 1969-02-11
•
Expires: 1986-05-18
Abstract
No abstract record available.
Inventors
- 👤 Paul Curt Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:20
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6408; H05B6/6411; A; A61; A61K; A61K41/00; A61K41/10; A61K41/13; A61M; A61M5/00; A61M5/44; A61M5/445
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3081392A
Cited
US3154663A
Cited
FR1249130A
Cited
US3185809A
Cited
US3127495A
Cited
US3177335A
Cited
US3281568A
Cited
US3315681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |