Patent US4039091A successfully refreshed from Google Patents.
US3076479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion means for self-contained liquid circulating systems
Assignee: Individual
•
Filing: 1960-11-02
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Granted: 1963-02-05
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Expires: 1980-11-02
Abstract
No abstract record available.
Inventors
- 👤 Ottung Kai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:48
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/02; F01P11/029; F15; F15B; F15B1/00; F15B1/26; F15B21/00; F15B21/04; F15B21/045; F16; F16K; F16K7/00; F16K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |