US3391911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing condensers
Assignee: KOMPLEX NAGYBERENDEZESEK EXPOR
•
Filing: 1964-04-21
•
Granted: 1968-07-09
•
Expires: 1984-04-21
Abstract
No abstract record available.
Inventors
- 👤 Heller Laszlo
- 👤 Forgo Laszlo
- 👤 Horvath Mihaly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:00
CPC Classifications
F; F28; F28B; F28B3/00; F28B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US458540A
Cited
US877445A
Cited
US1805635A
Cited
US2558222A
Cited
US2667433A
Cited
US2712929A
Cited
US2903251A
Cited
US3158666A
Cited
US3260036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |